The temperature was 48.2° when Marcy went to bed and 35.7° when she woke in the morning. What was the change in temperature?

A: 83.9°
B: 82.5°
C: 13.5°
D: 12.5° < -- ?

Carlos bought 3 gallons of ice cream for $9.50. Which proportion can be used to find the cost of 7 gallons of ice cream?
A: 3/7 = x/9.5
B: 3/9.5 = x/7 < --
C: 7/9.5 = x/3
D: 7/9.5 = x/3

The concession stand at the baseball field earns $2 for each whole pizza it sells. Which expression describes the total amount of money the concessions stand earns for selling p pizzas?

A: 2 x p < ---
B: 2 ÷ p
C: 2 + p
D: 2 - p

Your first and third answers are right.

The second question doesn't have a right answer shown. Maybe that's because C and D are identical.

Yeah I noticed that, but I didn't pick either because they were the same. Thank you(:

I like C for #2.

It's the same as 9.5/3 = x/7

Nope - my bad. B,C,D are all the same

You want

9.5/3 = x/7

but B,C,D are all 9.5/3 = 7/x

To find the change in temperature, you need to subtract the initial temperature from the final temperature. In this case, the initial temperature was 48.2°, and the final temperature was 35.7°.

So, the change in temperature is 35.7° - 48.2° = -12.5°.

Therefore, the answer is D: 12.5°.

To find the cost of 7 gallons of ice cream, you can use a proportion. The proportion should relate the number of gallons to the cost.

Since Carlos bought 3 gallons of ice cream for $9.50, the proportion can be set up as 3/9.5 = x/7, where x represents the cost of 7 gallons.

So, the answer is A: 3/7 = x/9.5.

To find the total amount of money the concession stand earns for selling p pizzas, you can multiply the number of pizzas by the amount earned per pizza.

Since the concession stand earns $2 for each whole pizza it sells, the expression that describes the total amount of money earned is 2 x p.

So, the answer is A: 2 x p.