Answer:
Given -2x + 7x + 8, the correct expression is 5x + 8.
Step-by-step explanation:
The student didn´t notice that 8 was not follow by x, and try to apply common factor. But we can´t do that. The correct form to solve this expression is -2x + 7x + 8 = (-2 + 7)x + 8 = 5x +8.
For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21
Answer: A 100
I did the text the other day
3rd answer always solve parenthesis first use PEMDAS
Step-by-step explanation:
c + 17
is the expression formed .
hope this will be helpful to you.
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