And are appropriate x-axis and y-axis unit scales given the coordinates (50, 40).
A. 50; 10
O B. 10; 5
O C. 50; 1
D. 10; 50

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

Which one ? is the answer and how to find this answer

Combine like terms to make a simpler expression 3z+z