She drove 2 hours at 70 miles per hour, so she drove 70 * 2 = 140 miles total.
The jet traveled 400 miles per hour for 2 hours for a total of 400 * 2 = 800 miles.
Total miles = 140 + 800 = 940 miles.
The answer is C.
Answer: 10+30=40 :)
Step-by-step explanation:
Answer:

Explanation:
The given expression is:

Combine like terms

Simplify the resulting expression

Substitute x = 3 and y = -1 into the simplified expression
Answer:
2190 miles
Step-by-step explanation: