Answer:
Justin's average speed to his parents' house: x= 40mph
Justin's average speed from his parents' house: x+20=60 mph
Step-by-step explanation:
Let the average speed be x +20
Then average speed from his parents' x
And the distance is S=96
Then we know :

Justin's average speed to his parents' house: x= 40mph
Justin's average speed from his parents' house: x+20=60 mph
Answer:
D
Step-by-step explanation:
hey
Answer:
4.5 units²
Step-by-step explanation:
(b × h) (.5)
(3 × 3) (.5)
This is false, -5(3e-2) is not less than -2(6e+7)