A) a=the initial value ($1650)
b=1-percent of decrease (0.81 or 81%)
B) About 3 years
Natalie
Step-by-step explanation:
Esraa finishes in 12.2 secons making her first.
natalie finishes in 12.34 seconds making her second.
Ava finishes in 12.89 making her third.
and Savannah finishes in 12.988 seconds making her last.
The slope is 4 or you can think of it as 4/1 if that helps. Remember slope intercept form is y=mx+b.
Y=16x²/9 ....................................