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Danielle’s phone plan charges her $30 per month for the first 200 minutes and then $0.10 per minute for each subsequent minute. Which of the following functions takes an input of any whole number value of x≥200 and outputs the value for f(x) as the amount of dollars Danielle would pay for xminutes of phone usage?

(A) f(x) = 0.1x+ 10

(B) f(x) = 0.1x+ 20

(C) f(x) = 0.1x+ 30

(D) f(x) = 0.1x+ 200

(E) f(x) = 0.1x+ 230

The Correct Answer
Explanation

The Korean BBQ taco truck sells short rib tacos for 99?. Christine has only pennies, nickels, dimes, and quarters in her purse. If she wants to pay with exact change, then what is the least number of coins Christine can use to buy a 99? taco? (Note: Assume any sales tax is included in the price.)

(A)6 (B) 7 (C) 8 (D) 9 (E) 10

Correct Answer: D

To this questions below, use the following graph, which provides information about the number of new clients five salespeople registered last month.

What percentage of the new clients did Yolanda register?

(F) 18%(G) 20%(H) 22%(J) 24%(K) 25%

Correct Answer: G

The solution set of 5x + 9 ≥ 2(3x + 4) + 7 is shown by which of the following number line graphs?

(A) (B) (C) (D) (E)

Correct Answer: A

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