:part 1
lisbeth runs on the track team. after practicing for 4 weeks, she lowers her time in t...
Mathematics, 29.08.2019 18:30 meganm9889
:part 1
lisbeth runs on the track team. after practicing for 4 weeks, she lowers her time in the 800 meter run by 20 seconds.
which expression can you use to calculate the average change in seconds per week?
a.-800÷4
b.-20÷4
c.20÷4
d.800÷4
part 2
evaluate the expression that represents the scenario.
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