A student computed the average of her 7 test scores by adding the scores together and dividing this total by the number of tests. The average was 87. On her next test, she scored a 79. What is her new test average?

The rectangle shown has a perimeter of 56 cm and the given area. Its length is 88 more than three times its width. Write and solve a system of equations to find the dimensions of the rectangle.

What is 7 5/12 written in decimal

If carpeting is sold at $4.50 per yard, what would 5 1/2 yards cost?

A fence must be built to enclose a rectangular area of 20,000 square feet. fencing material cost $2.50 per foot for the two sides facing north and south and $3.50 per foot for the other two sides. find the cost of the least expensive fence.

Write three ratios equivalent to the given ratio. include the simplest form if not given. circle the simplest form. 10/12

1. Solve w2 + 13w + 42 = 0 by factoring.

Convert the following logarithmic equation to the equivalent exponential equation. Use the caret (^) to enter exponents. y=ln x

It is known that x=7 is a root of the equation ax^2 + bx + 2 = 0, where a<0. Solve the inequality ax²4 + bx^2 + 2>0.

Which ordered pair is a solution of the equation? X+7y=17 Answer Choices A. Only (10,1) B. Only (-4,3) C. Both (10,1) and (-4,3)

A high school play cost an up front $30,000 to produce, plus an additional cost as of $1000 for each perfromance. Every sold out performance of the of thr play brings in $2500 of revenue to the school.