The water level in a lake has changed by - 16.8 feet over the last 2.5 years. what is the average change in the water level each year?

A) - 6.72

B) - 0.672

C) 0.672

D) 6.72

Use mental math to solve the equation x-16=14

A pond 85 feet across; 1 inch = 4 feet

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The doubling time of a population of flies is 5 hours. by what factor does the population increase in 30 hours? By 1 week?

Two independent simple random samples are taken to test the difference between the means of two populations whose variances are not known, but are assumed to be equal. The sample sizes are n1 = 32 and n2 = 40.

What is an equivalent fraction for 1/3

Use the distributive property to simplify the expression. -7 (8x - 3) + x A. x + 10 B. - 15x + 4 C. - 9x - 4 D. - 55x + 21

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All of the following equations have the same solution except ___. 3m+2=-10 2-3m=-10. - 10=-3m+2. - 3m+2=-10

Solve the inequality for x. - 4x + 6 < 50