If the mean of a test is 80 and the standard deviation is 4, how many students scored above

an 80?

50%

68%

34%

95%

which is the right answer?

How do I calculate the average rate of change of a function on a given interval?

Which equations are true? 61 X 5 = 3,050 = 10 381 X 27 = 1,143 + 9 854 x 63 = 53,802 562 x 42 = 23,604 72 x 30 = 270

What is the sum of 8+7+6.5+7+8

A car that costs $52,400 depreciates at the rate of 9.8% every year. how much in total, to the nearest cent, will the car depreciate after 10 years?

4 + x/7 = 2 solve for x A) - 14 B) 10 C) 12 D) 42

How could you estimate the difference of 4.772

The state of Kansas has a sales tax of 5.3%, and the maximum rate a consumer can pay for local sales tax is 8.65%. What is the range of possible sales tax rates that a consumer could pay on a taxable item in the state of Kansas? A. At least 5.

How can you create an equivalent equation by using the properties of equality

In substitution what is the answer to y=x^2-10x+14 y=7x-16

Solve the equation 1 (z + 2) = 5