Mathematics, 28.01.2020 07:31, devbar3416

Marika is training for a track race. she starts by sprinting 100 yards. she
gradually increases her distance, adding 4 yards a day for 21 days.
which explicit formula models this situation?
o a. an = 21 + (n - 1)4
o b. 2n = 100 + (n − 1)4
o c. an = 100 + (n − 1)21
o d. an = 4 + (n − 1)100

Answers: 3

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Marika is training for a track race. she starts by sprinting 100 yards. she
gradually increase...