Question

1. in a restricted parking zone, vehicles can park for no more than 2 hours. which inequality represents this time limit?

a. $t < 2$
b. $t \geq 2$
c. $t > 2$
d. $t \leq 2$

1. what type of term is $5x^2$ in the expression $x + 5x^2 - 3$?

a. numerical term
b. variable term
c. constant term
d. isolated term

1. a store offers a discount of 20% off the original price of an item. which equation represents the discounted price ($d$) of an item originally priced at $50?

a. $d = 50 + (50 \times 0.20)$
b. $d = 50 - (0.20 \times 50)$
c. $d = 50 - 0.20$
d. $d = 50 \times 0.20$

Explanation:

Question 20

Step1: Interpret "no more than"

"No more than 2" means $t$ is ≤ 2.

Step2: Match to option

Inequality: $t \leq 2$

Question 21

Step1: Define term types

Variable terms contain variables ($x$ here).

Step2: Classify $5x^2$

$5x^2$ has variable $x$, so it is a variable term.

Question 22

Step1: Calculate discount amount

Discount = $50 \times 0.20$

Step2: Find discounted price

$D = \text{Original} - \text{Discount}$, so $D = 50 - (0.20 \times 50)$

Answer:

1. d. $t \leq 2$
2. b. Variable term
3. b. $D = 50 - (0.20 \times 50)$