Answer:
19
Step-by-step explanation:
-8+8=0
0+19=19
Hope it helps.
Answer:
1217
Step-by-step explanation:
Answer: written below
Step-by-step explanation:
1 hour time 40 miles/ hour =1*40=40miles
0.5 *70=0.5*70=35 miles
40+35=75 miles
60 minutes+30 minutes= 90 minutes or 1 1/2hours

We're going to change one unit at a time. Let's start with inches to feet. There are 12 inches in 1 foot. Divide 240 by 12 or multiply by 1/12.

Next, let's do the time using the same idea. Remember that there are 60 minutes in 1 hour.

Answer: 1200 feet per hour
Hope this helps!