Can someone look over and help me with some of these questions

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:

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

answerim :

n

step-by-step explanation:

im not sure but my dad knows

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.