Choose what the variable or expression below represents within the context of the word problem.

the length of a rectangle is 12 inches more than its width. what is the width of the rectangle if the perimeter is 42 inches?

1.) x best represents?
a. length of the rectangle
b. width of the rectangle

2.) x + 12 best represents?
a. width of the rectangle
b. length of the rectangle

1) B

2) B

Step-by-step explanation:

Since the width is what is being used to compare against, we know that we start with it as x.

Since the length is more than the width by 12 and the width is x, we know the length would be x + 12

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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step-by-step explanation:

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