Answer:
180 yards
Step-by-step explanation:
The number of yards she sprints on day 21 can be found by evaluating the formula with n=21.
a21 = 100 +(21 -1)4 = 100 +(20)(4) = 100 +80 . . . . . use 21 in place of n
a21 = 180
Marika sprints 180 yards on day 21.
103,680
C
Hope this helps.
answer b 8 months
you can subtract 100 from 460, to get 360 which if you take 45/360 you would get 8, and have 100 dollars still that you took out