30% is 250% of what number?

6.3 x 10'-8 in standard notation

There are 10 fish in a bowl 5 fish drowned, how many fish are left?

A recipe calls for 1/3 cup of milk. You have 3/4 cup of milk. How much milk will be left over?

If I have an 84% in one my classes and quizzes are 20% of my grade, how would quiz scores affect my grade? (from 100% to 0%)

You received a $100 gift certificate to a clothing store. The store sells T-shirts for $12 and dress shirts for $21. You want to spend no more than the amount of the gift certificate. You want to leave at most $7 of the gift certificate unspent.

What are all the values that make x^2 + bx + 144 a perfect square?

What is the area of a rectangle whose length is 12 and whose diagonal is 13?

In the Pythagorean equation, a and b represent the legs that create the right angle. True False

For the inverse variation equation xy = k, what is the constant of variation, k, when x = 7 and y = 3?

Multiply: (0.6x4) (0.2x6)