On a piece of paper, graph ys -2x. Then determine which answer matches
the graph you drew.

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

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Can someone me and do the problem plz so i can understand it more better