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1. They will meet as 7:20 PM

explanation: The first friend runs at a speed of 8 miles per hour.

The second friend runs at a speed of 7 miles per hour.

they left at 6 p.m.

their houses are 20 miles apart,

Since they are running towards each other the effective speed will be

(8+7) = 15 mph

Distance = 20 miles

time they run = 20/15 =4/3 hours

They will meet at 7:20 pm

2. 0

3. 4/5 second

explanation: The time = 4 / {17-12} = 4/5 second

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

40 minutes

step-by-step explanation:

add the time and multiply by 2