Reena has 12 more dimes than she does quarters. if reena has a total of 28 coins, how many quarters, qq, and how many dimes, dd, does reena have? use the equations and the graph below to arrive at your answer.
q = d –12
q = 28 –d
a. 28 dimes and 12 quarters
b. 20 dimes and 8 quarters
c. 12 dimes and 28 quarters
d. 8 dimes and 20 quarters

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Afair survey question is one that does not encourage biased responses. which survey question is fair? a.) do you agree that only unethical people take credit for other people’s work? b.) have you ever taken credit for somebody else’s work? c.) have you ever engaged in unethical behavior, such as taking credit for somebody else’s work? d.) don’t you think it is unethical to take credit for somebody else’s work?

Nicole purchased a container of cashews that weighs 5 kilograms. zion purchased a container of cashews that weighs 4,900 grams. how many more grams of cashews did nicole purchase?