Simplify: 12d • 1/2d

Original 45 new 30 what is the percent of decrease?

Find the number of permutations of the first 8 letters of the alphabet taking 4 letters at a time.

Charles has 24 marbles. He has 6 more yellow marbles than blue marbles. Which expression represents this equation?

What's the nth term for 3,4.5,6,7.5

The measure of an angles suppliment is 53° more than twice that of its compliment. find the angle.

Shira packs 170 lemon bars in boxes for the bake sale. Each box holds 8 lemon bars. She takes home the lemon bars tha are leg over after she has filled as many boxes as possible.

What is 412, 825 round to the nearest ten?

What is the answer to 1over 20

Nine less than four times a number equals fifteen

Its 30 pages because if you divide 493 by 16 it equals 30 pages