Answer:
3x + 30
Step-by-step explanation:

3x + 30 would be an equivalent expression.
Hope this helps.
Answer:
8
Step-by-step explanation:
So you can start by simplifying each fraction:
16/6 divide by 2/2 = 8/3
3s/9 divided by 3/3 = s/3
Then, since 8/3 = s/3 you just have s = 8.
Answer:
12 miles in 4 hours is 3 mph
52-12=40 miles left
40 miles at 5 mph would take 8 hours
8+4=10
it took 10 hours to finish the trip.
Answer:
x= 5 , for c to be same on each eqn
90,000
the reason is because look at the 1,000 place that rounds the 10,000 place to 0 and carries the 1 over to the 100,000 place