25 students average 84 on a test. another group of 20 students averages 66. find the overall average.

Simplify the following expression: - 3 (4x-2) - 2x

Patty made a banner that has an area of 36 square inches,. The length and width of the banner are whole numbers. The length is 4 times greater than the width. What are the dimensions of the banner?

A car travels at the speed of 65 miles per hour. going through construction, it travels at 3/5 this speed. write thsi decimal as a fraction and find the speed.

Determine whether or not the procedure described below results in a binomial distribution. If it is not binomial, identify at least one requirement that is not satisfied.

Simplify 12a - (6a+a) =

What is the volume of the cone? Use π ≈ 3.14. 12.56 cubic units 18.84 cubic units 20.93 cubic units 25.12 cubic units

On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.

The length of a rectangular swimming pool is 7 yards greater than the width. If the area of the pool is 60 square feet, what is the length of the swimming pool?

Is 0.6363 a repeating decimal

Simplify each and state the excluded values p+4/p^2+6p+8