Answer:
See below in bold.
Step-by-step explanation:
1. 0.00000402
= 4.02 * 10^-6 (Counting the digits after the decimal point until we get to the 4 gives us the -6).
2. 1,900,000
= 1.9 * 10^6 ( counting the number of digits after the 1 gives us 6).
Answer:166
Step-by-step explanation:
SA=2lw+2lh+2hw so 2*4*5+2*7*5+2*7*4
so 40+70+56=166
40 minutes would be the answer.
120 minutes = 2 hours.
If she rests every 15 minutes, divide 120 by 15 and get 8.
She takes 5 minute rests, so times 5 by the 8, and you get 40.
Hope this helped.
