Which of the following is NOT a method to solve a system of equations? O Absolution
O Substitution
OElimination
O Graphing

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

This question awards 100 ! i really don’t want to fail i will also mark you !

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars