Solve for r. - 9-3r=6-3 (r+5)

Suppose a population of 50 crickets doubles in size every 4 months. How many crickets will there be after 5 years? 1,500 crickets 1,600 crickets 2,000 crickets 1,638,400 crickets

How many 5/8 pounds are in 16

5 (2x-1) / 3 - 4 = 11 what does x =

What is a GCF of 10 and 20

A town has a population of 17000 and grows at 4% every year. What will be the population after 12 years, to the nearest whole number?

Class 10R sat a test. The mean mark of the class was 70%. There are 30 students in class 10R, 20 of whom are boys. The mean mark for the boys in the test was 62%. Work out the mean mark for the girls.

What is $16.50 x 7%

3. "a varies directly with b". If a = 4 when b = 21, find a when b-7.

Evaluate the expression using order of operations 8-3[{4+2}+6]=?

Let n be a prime number. Which of the following statements CAN be true? A. n is a perfect square B. n is even C. n is irrational D. nis negative E n is divisible by 4