Answer:
± 7
Step-by-step explanation:
Given
d =
, then
d = 7 or - 7, that is ± 7
Since 7 × 7 = 49 and - 7 × - 7 = 49

Multiply
by 80 and you will get how many boys play video games daily.

44 is the number of boys who play video games daily.
Hey
Here it is, can u give me a brainliest answer???