1 ÷ 0 is undefined. nothing can be divided by 0.
90 + 20x + 10x = 180
30x = 90
x = 3
-1/2w-3/5=1/5w
-5w-6=2w
-5w-2w=6
-7w=6
w = -6/7
Firstly, you change it to miles per second and then to feet
102miles per hour(60×60s)
102 per 120s
Divide
102÷120
=0.85miles per second
Convert to feet
=4488 feet per second
Answer:
I think that the answer is A
