Question 1

Bob buys eggs and potatoes at a store.
• He pays a total of $$\$25.92$$.
• He pays $$\$2.57$$ for the eggs.
• He buys 5 bags of potatoes that each cost the same amount.
Which equation can be used to determine the cost, $x$, of each bag of potatoes?

Accepted Answer

$x=(25.92-2.57) \div5$

Answer

$x=25.92 \div 5+2.57$

Answer

$x=25.92\div 5-2.57$

Answer

$x=(25.92+2.57) \div 5$

Question 2

Which expression is equivalent to $(-18)-64n$?

Accepted Answer

$-2(9+32n)$

Answer

$2(9+32n)$

Answer

$2(9-32n)$

Answer

$-2(9-32n)$

Question 3

A farm grew 19.8 tons of wheat in 2013. The farm's wheat output increased by 9.8% from 2013 to 2014 and by 5.1% from 2014 to 2015. Which expression represents a strategy for estimating the total output of wheat, in tons, in 2015?

Accepted Answer

20(1.1) (1.05)

Answer

20 + 1.1 + 1.05

Answer

20(10)(5)

Answer

20 + 10 + 5

Question 4

Which expression is equivalent $n+n -0.18n$?

Accepted Answer

$1.82n$

Answer

$2n-0.82$

Answer

$n-0.18$

Answer

$1.18n$

Question 5

Which expression is equivalent to $-\frac{1}{3}(6x+15)-3$?

Accepted Answer

$-2x-8$

Answer

$-2x+12$

Answer

$-2x+2$

Answer

$-2x-2$

Question 6

Josh has a rewards card for a movie theater.
• He receives 15 points for becoming a rewards card holder.
• He earns 3.5 points for each visit to the movie theater.
• He needs at least 55 points to earn a free movie ticket.
Which inequality can Josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket?

Accepted Answer

$55 \le 3.5x+15$

Answer

$55 \ge 3.5x+15$

Answer

$55 \le 15x+3.5$

Answer

$55 \ge 15x+3.5$

Question 7

At a store, a hat has a regular price of $x$ dollars. During a sale, the price of the hat is discounted by 20%. The expression $0.8x$ describes the discounted price, in dollars, of the hat. Which expression also describes the discounted price, in dollars, of the hat?

Accepted Answer

$x-0.2x$

Answer

$0.2x$

Answer

$x-0.2$

Answer

$x-20$

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