You have an allowance of $9 a week. Since you acted up in math class, your parents reduced your allowance by 50%, next week you were better, so they increased last weeks allowance by 50%; what is your current
allowance?
Hint: It's not 9

Find the solution of this system of equation -7x+y=-20 9x-3y=36

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

What is r i 4.5+10r=-6.5 with work pls