Henry, an employee at the store is stacking the 387 Rubin cubes into cute triangular displays. If he puts 3 cubes on the bottom row, and stacks one less cube per new row, how many cubes will not be in a triangular display?

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

fghrtyhrtsyut jyt u6su

step-by-step explanation:

the correct answer is x/3+10≥32

hope this !

im pretty sure its

(8,15)

step-by-step explanation: