note: please make sure to properly format your answers. all dollar figures in the answers need to include…

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.67). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places ($0.00).\na local cable/internet/phone provider charges new customers $129 for all three services, per month, for the first year under their \3 for 129\ promotion. joanne normally pays $74 for her monthly home phone service, $59 for internet service, and $69 for cable television.\na. what are her percent savings if she switches to the \3 for 129\ plan? round to the nearest percent.\nb. if, after the first year, the flat - fee for all three services is $139, what are her percent savings? round to the nearest percent.

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.67). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places ($0.00).\na local cable/internet/phone provider charges new customers $129 for all three services, per month, for the first year under their \3 for 129\ promotion. joanne normally pays $74 for her monthly home phone service, $59 for internet service, and $69 for cable television.\na. what are her percent savings if she switches to the \3 for 129\ plan? round to the nearest percent.\nb. if, after the first year, the flat - fee for all three services is $139, what are her percent savings? round to the nearest percent.

Answer

Explanation:

Step1: Calculate normal monthly cost

First, find the sum of normal monthly costs for phone, internet and cable. $74 + 59+69 = 202$.

Step2: Calculate percent savings for first - year promotion

The formula for percent savings is $\text{Percent Savings}=\frac{\text{Normal Cost}-\text{Promotion Cost}}{\text{Normal Cost}}\times100%$. Substitute the values: $\frac{202 - 129}{202}\times100%=\frac{73}{202}\times100%\approx 36.14%$. Rounding to the nearest percent gives $36%$.

Step3: Calculate percent savings after first - year

After the first - year, the cost is $139$. Using the percent - savings formula $\frac{202 - 139}{202}\times100%=\frac{63}{202}\times100%\approx 31.19%$. Rounding to the nearest percent gives $31%$.

Answer:

a. 36% b. 31%