Each year for 4 years, the time it takes you to run a mile decreases by 6 seconds. Find the total change in time.

To set up this equation, we want to find the total change in time (x) over 4 years if every year your time decreases by 6 seconds. Our equation should look something like this:

x = 6*4

To solve this, you just have to multiply 6*4!

x = 24

This means that over 4 years, you have cut 24 seconds off of the time it takes you to run a mile! Your total change in time would then be 24 seconds!

b.-4 units

all you   do is count how many times you move

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.