Answer:
<em>24 minutes</em>
<em></em>
Step-by-step explanation:
Given:
Distance per lap = 2 miles
Speed of Lou Lambert = 160 miles/hr
Speed of Ralph Redding = 170 miles/hr
Speed difference between the two = 170 - 160 = 10 miles/hr
Therefore, we can say that <em>Ralph gains 10 miles in 60 minutes </em>over Lou<em>.</em>
We have to find the time in which Ralph will gain 2 laps i.e. 2
2 = 4 miles.
Let us use unitary method to find the required time.
10 miles are gained by Ralph in 60 minutes
1 mile will be gained in 
4 miles will be gained in 6
4 = <em>24 minutes</em>
Answer:
20 pine trees
Step-by-step explanation:
No of pine trees today = 63
No of pine trees there = 43
So no of pine trees planted today= 63-43= 20
Answer:
$21
Step-by-step explanation:
21+42=63
x=63:3
x=$21
8-9r is the answer to this