PLEASE HELP IMMEDIATELY I NEED ANSWER RIGHT NOW. To start solving the system of equations below, which number would you multiply the equation -2x – 5y = -1 by?

-2x-5y=-1
8x+4y=16

What is the simplified expression for 6(2(y+x))

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.