The school janitor is going to purchase a vacuum cleaner to use in the classrooms. The regular price of a vacuum cleaner is $70. The janitor can buy a used one for $28. How much money will he save if he buys the used vacuum cleaner?

Which is more, 37 quarts or 10 gallons?

What is the perimeter of a triangle with sides of 12 inches, 9 inches, 15

How can I Factor the expression below 9x2-1

Carlos collects 26 stamps. Adam collects 38 more than Carlos. How many stamps do they have all together?

Is 7.5 less or greater then 7.05

0.4 (2x plus 1/2) equal 3 (0.2x plus (-2)) minus 4

If there is 2 ducks ahead of a duck 2 ducks behind a duck & 1 duck in the middle. How many total ducks are there?

I need to simplify each complex fraction like 3/4:1/2

What is an expression for the sale price of a bracelet that has been discounted 20% from its sticker price? Evaluate the expression for a sticker price of $40. Use the variable for the sale price and for the sticker price. a. = - 0.2; $32 b.

Suppose S and T are mutually exclusive events, P (S) = 5%, and P (T) = 11%. Find P (S or T).