Which quantity is proportional to 20⁄5? Check all that are true. 100⁄25 10⁄2 60⁄15 40⁄2 4⁄1

A restaurant bill is $28.35 and 20% tip

Solve for r r=c/2π c=15

If candy bars are sold for $1 each, and 50 cents of each bar goes for charity, how many bars will need to be sold in order to raise $7.00 for charity?

Which square root is NOT a whole number? A) 144 B) 156 C) 169 D) 196

An equation of a circle is given as (x + 6) ² + (y - 7) ² = 81. Find the center and radius of the circle. Show all work to receive full credit.

What is 10^3? A) 100 B) 300 C) 1000 D) 3000

Add. 7x2 - 5x+3 + 2x2 + 7x-8

Use the substitution method to solve the following system of equations: 4x - y = 3 7x - 9y = - 2

What is 40 divided 175

A recipe for 16 16 corn corn muffins calls for 1 cup of flour. The number of muffins that can be made varies directly with the amount of flour used. There are 2 and one half 2 1 2 cups of flour available. How many muffins can be made