If rectangle QRST is dilated by a scale factor of 3 through the origin, which of the following points represent the coordinates of Q? A. (1,21)
B. (-3,-21)
C. (3,21)
D. (3,7)

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Ill mark the brainliest if you me with the these three questions 7,8,9

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15