If 20% of a number is 80, what is the numbers

The school orchestra is creating a CD of their last concert. The total cost is $550 + 3.50 per CD. Write an expression for the cost of creating the CDs based on the number of CDs n.

Make a the subject get a on its own a (p-3q) = pq

Aimee was hiking and the trail started at 92 yard below sea level. The first stop on the trail was up 63 yards. What Is the altitude of the first stop?

What is the chance that for 30 random spins, 29 will be up?

Find the pay per hour if you earned $120.67 for 16 hours worked.

Veronica wants to make six servings of oatmeal to feed her family. She needs 1 2 cup of oats for each serving. She has 2 cups of oats.

The number line is a graph of ... a. real numbers b. integers c. rational numbers

Corina multiplied 62 x 22 and found a product of 1,042. is Corina's answer reasonable? Explain.

According to data obtained from the national weather service 166 of the 400 people killed by lightning were men. assume that this trend holds for the future. what is the probability that a person killed by lightning is a woman?

The range of the function f (k) = k2 + 2k + 1 is {25, 64}. What is the function's domain? {5, 8} {-5, - 8} {3, 8} {4, 7} {4, 8}