A quarterback is sacked for a loss of 5 yards. On the next play, his team loses 15 yards. Then the team gains 12 yards on the third play. Write an addition expression to describe this situation. A. -5 + (-15) + 12
B. 5 + (-15) + 12
C. -5 + 15+ ( - 12)
D. 15 + 7

Which expressions are correct.

Anwser is a

Step-by-step explanation:

because

10010010001010010101001001010010100101010010101010010010101010110010001011010010010001

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: