Answer:
y=−15
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On the 21st day, he sprints 205 yards.
Is that what you meant for the problem
or do u want to know how many yards he sprinted total for the 21 days
If it is,
he sprinted a total of 3390 yards
Answer: IRT WOULD BE C bc likw look da chaer i dont gotta epsxlain
Step-by-step explanation:
Answer:
I'm pretty sure it's 63 kilometers
Step-by-step explanation:
4.2 centemeters times 15 kilometers
hope this helps
For this case we must factor the following quadratic expression:

To factor, we must find two numbers that when multiplied give as result +9 and when added or subtracted give as result -6.
These numbers are:
-3 and -3

So, we have:

ANswer:
Option D