Answer:
the answer is 4.75
Step-by-step explanation:
5-0.25=4.75
1. a (n) = -0.6(n) + 14.6
2. a (12) =7.4 sec
3. 6th race
Would you like an explanation?
ANSWER
On photo
EXPLANATION
Use the quadratic formula since the equation doesn't factorize not simplify by 3