Solve for r.

-9r = 27

Y=3/8x The constant of proportionality is

Round the nearest dollar amount of $34.57

There are 4 pitchers. Each has 1.8 liters of milk. About how many liters of milk in all?

Betty makes pies. To make 6 pies, she uses 7.5 cups of flour. How many cups of flour are needed to make 1 pie?

If you estimate 342 : 7 by using 350 : 7 by using 350 : 7 = 50, is 50 greater than or less than the exact answer? How did you decide? Is 50 an overestimate or an underestimate?

Brad puts an equal amount of money in his savings account once a month. He started with $25. The next month, he had $35 in his account. Two months after that, he had $55 in his account.

What value of x makes this statement true? 3x + 4 = 9x - 8 A. - 2 B. 1 C. 2 D. 12

Find the geometric mean of 4 and 10.

Round 475 to the nearest hundred.

in the recent presidential election, Ohio had 18 electoral votes. This is 20 votes less than Texas had. How many electoral votes did Texas have?