Use the slope formula to find the slope of the line through the points (−1,−1) and (−2,−2).

The slope is 1

Step-by-step explanation:

The slope formula is (y2 - y1)/(x2-x1)

Plugging in these values, we get (-2 - (-1))/(-2 - (-1)), or -1/-1, or simply 1.

Hope it helps :)

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9