5x+9y+z=20

2x-y-z=-21

5x+2y+2z=-21

Grandma Susette is making a new holiday quilt. If the area of the quilt is 57 3/8 square feet and one side has a length of 6 3/4, what is the width of the quilt?

If 8.45% life of each mobile phone is used in a day by a typical user for which mobile phone is 2.1 hours of battery life used in a day? A) 20 B) 25 C) 10 D) 18

If a=6 and b=5 what is the value of (A2-b2) 2

A right triangle with an area of x2 - 4 square units has a leg that measures 2x + 4 units. determine the length of the other leg of the triangle.

Use the distributive property to rewrite each expression (d+2) (-7)

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