we know that
1) Lily swims a 
-meter race
2) She swims the first half in 
seconds
3) She swims the second half in 
seconds
so
To find the total time to swim the whole race sum the time in the first half plus the time in second half
therefore
<u>the answer is</u>
Answer:
a) DF = 20
b) DF =
Radical Form = sqrt(53)
Decimal Form = 7.28
Answer:2.35294117647 or 2.3
Just do 40/17
Exponents help to get to the answer if you are doing an equation, They are meant to tell you and help you with the proper order of pemdas!
