The magnitude of the exponent determines how many times you move the decimal to the left or right. Since the exponent is +4, move the decimal to the right 4 times to get 7090
3.9+3.9 = 7.8
7.8 * 3.9 * 3 = 91.26
5.7 * 3.9 * 3 = 66.69
66.69 + 91.26 = 157.95
Answer is A
Answer:
D. 369,600 feet
Step-by-step explanation:
If 1 mile = 5,280 feet, just multiply 70 by 5,280 to get the answer!
Hope this helps! :)
