Find the solution of this system of equations 5x - 6y = -90 - 10x - 6y = -90

Kenny weight is 6/7 times Melvin weight. What is the ratio of Kenny weight to Melvin weight? Give answer in fraction form

One supplementary angle is 15 degrees less than twice the other. Find the measure of the two angles.

Factor the following expression. Make sure it is in lowest terms 15x+35

Evaluate the expression for the given value of the variable. 8s - 8; s = 9

The difference of two numbers is 20. Their sum is 14. Find the two numbers.

An advertisement states that a can of paint will cover 480 square feet. How many gallons of paint are needed to cover 1,680 square feet?

Mrs McDonald spent 24.65 at a yard sale on Saturday. on Sunday she went to another sales and spent 14.95 more than she did on Saturday. what is the total amount that Mrs McDonald spent on both yard sales

Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda use her card only to make a long distance call if the remaining credit on her card is $22.

Consider this equation: - 2x - 4 + 5x = 8 Generate a plan to solve for the variable. Describe the steps that will be used.

What is the graph of the function y=2x2^x