What number multiplied by itself gives 36

If 15% of n is 300, what is 22% of n?

At a two-day seminar, 90 percent of those registered attended the seminar on the first day. What percent of those registered did not attend the seminar on either day? (1) A total of 1,000 people registered for the two-day seminar.

In 1980, the United States' national debt exceeded $9 billion dollars. Express the exact dollar amount in scientific notation.

If p is prime and n is even such as that p+n = 47 and p*n=210 what is the value of n?

How to I write 1/8 without using a fraction bar (it wants me to use exponents)

C=-3. a=2 b=4 (2) 2 (3c+7)

1) x+3 - 5x + 7 + 4y

Amanda's computer weighs 56 ounces. how many pounds does it weigh?

Change 5 ft. to yards

The admission to the fair is $5 and the cost per ride is 50 cents. If his parents give hime $20, write and solve a linear equation to find how many rides he can go on.