Alejandra solved a math problem by doing the steps below in the order shown. 1. Subtract 12 from 20.
2. Multiply the difference by the sum of 6 and 4.
Which expression shows the steps Alejandra did to solve the problem?
A. O 20 – 12 x 6 + 4
B. O 20 – 12 x (6 + 4)
C. O (20 – 12) * 6+4
D. O (20 – 12) × (6 + 4)

D

Step-by-step explanation:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

you can't solve x because it is 2 linear equation and you only have one equation