Quadrennial abcd has vertices a(-3,4), b(1,3), c(3,6), and d(1,6). that’s the translation 7 units right?

See below.

Step-by-step explanation:

Just add 7 units on to each x coordinate.

A' = (-3+7, 4) = (4, 4).

the other points  B' , C' and D' are found in the same way.

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.