Answer:
Step-by-step explanation:
i think that it is either -7 - -8 or -7 + 8 or -7+-8.
Hope it helps 10 mins on the elliptical and 12 on the treadmil
There will be 2 groups, and each group have 6girls and 9 boys.
12 ÷ 2 = 6
18 ÷ 2 = 9
Did this a couple years ago, im kinda lost xD . sorry