Answer:
Therefore Josie drove 57.5 miles.
Step-by-step explanation:
Speed: The ratio of distance to time.
To find the distance we use the following formula

Given that Josie drove 45 minutes at 70 miles per hour.

In 45 minutes, she traveled = 
=52.5 miles.
The she drove 15 minutes at 20 mile per hour.

In 15 minutes, she traveled 
=5 miles
Therefore Josie drove (52.5+5) miles= 57.5 miles.
Answer:
100% increase
Step-by-step explanation:
Calculate percentage change
from V1 = 20 to V2 = 40
(V2−V1)|V1|×100
=(40−20)|20|×100
=2020×100
=1×100
=100%change
=100%increase
Answer:
4
Step-by-step explanation:
On a number line you will got to -8 and go up 12 and you would get 4
3.97, 4 is less than 5 so you round down, and you should round to the nearest hundredths