Which expression(s) are equivalent to the expression below? 63+12+ (-2.8)

I don't know what the options are for the expressions, but here's what I got.

Step-by-step explanation:

63 + 12 + (-2.8)   Or you could've done:

75 + (-2.8)          63 + 12 + (-2.8)

72.2                    63 + 9.2

                           72.2

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

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)