What is the mean of the data set?

17, 24, 26, 13

a 4
b 13
c 20
d 80

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

Which triangles is mno similar to and why

The radius of a 10 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.1 inch. what is the resulting possible error in the volume of the cylinder? include units in your answer.