In Mrs. Hu's classroom, 4/5 of the students have a dog as a pet. Of the students who have a dog as a pet also have cat as a pet. If there are 45 students in her class, how many have both a dog and a cat as pets?

The seats in each section are in 32 rows. There is an equal number of seats in each row. How many seats are in each row?

The square of a number less twice the number is 24

Researchers reported that a group of bacteria grew from 202,000 in eight hours. Actress rate of growth how many bacteria will there be in 20 hours from the start of the experiment? Round to the nearest whole number

2/7 m - 1/4 = 3/14 Solve using property of equality?

In triangle KLM, if K is congruent to L, KL = 9x - 40, LM = 7x - 37, & KM = 3x + 23, find x & the measure of each angle.

What is the power of 1,000,000 with a base of 10

Which is the graph of f (x) = 5 (2) Y?

How many years from 1848-2015

What is 66.875 as a mixed number in simplest form.?

Show tow ways to evaluate a (b-c) for a=4, b=5, and c=3