solve the following equation

-9 = r/4
a. r= 36
b. r=13
c. 5= 9/4 (mine)
d. r= -36

multiply both sides by 4

what is -9 times 4 ?????

Nope.

-9 = r/4

Multiply both sides by 4.

-9 x 4 is -36 so I am assume thats my answer

Yes, it is.

To solve the equation -9 = r/4, we can use inverse operations to isolate the variable "r".

Step 1: Multiply both sides of the equation by 4 to get rid of the fraction:
-9 × 4 = (r/4) × 4
-36 = r

So, the solution to the equation is r = -36. Therefore, the correct answer is option d: r = -36.