Answer:
Well, if you're talking about what operation is the variable about to be done with...then its multiplication because you're supposed to first solve the expression on the left by multiplying.
But, if you're talking about solving just look below:
−3(4r−8)=−36
(−3)(4r)+(−3)(−8)=−36 (Distribute here)
−12r+24=−36 (Subtract 24 from both sides.)
−12r+24−24=−36−24
−12r=−60 (Divide both sides by -12)
r=5
Multiply each design by each design:
3 shapes x 4 sizes x 3 input x 4 output = 144 different designs
2.2 to correctly combine me with yours we stick
28
36
40
44
just do the number +1 and ×4
