Question

36 elisa bought a glove for $18.77. how much change should elisa get from a $20 bill?
a $1.23
b $1.33
c $2.23
d $2.33

37 what is $8^3$ written in standard form?
a 24
b 64
c 512
d 4,096

Explanation:

Question 36

Step1: Identify the amount paid and cost

Amount paid = $20, Cost of glove = $18.77

Step2: Calculate change

Change = Amount paid - Cost of glove = $20 - $18.77 = $1.23

We know that any non - zero number to the power of 0 is 1. But wait, there is a mistake here. Wait, if the question is \(8^{3}\) (maybe a typo), \(8^{3}=8\times8\times8 = 512\). But if it is \(8^{0}\), then \(8^{0} = 1\) (but 1 is not in the options). Assuming it is \(8^{3}\) (since 512 is an option):

Step1: Recall the formula for exponentiation

For a number \(a\) and positive integer \(n\), \(a^{n}=\underbrace{a\times a\times\cdots\times a}_{n\text{ times}}\)

Step2: Calculate \(8^{3}\)

\(8^{3}=8\times8\times8=64\times8 = 512\)

Answer:

A. $1.23

Question 37