Find his rate:
120 / 15 = $8 per hour
Multiply the rate by hours:
$8 x 20 hours = $160
He will earn $160
She should chose the $9 because it is cheaper ;)
Answer:
x=32 y=416 M<ABC=158°
Step-by-step explanation:
Point A, because the square root of 81 is 9, and 83 is just slightly larger than 81. Point A is slightly more than 9, and all of the other points are out of range, so the answer is A
Isolating the variable terms and dividing by 4, we have 
Taking the square root, we have 
