HELP AND ILL GIVE BRAINIEST The value of a function decreases by a factor of 0.8 with every unit increase in x. When x is 0, the value of the function is 17. Write an exponential function in the form f(x)=ab^x to describe the situation.

a. f(x)= 17 x 2^x

b. f(x)= 0.8 x 17^x

c. f(x)= 17 x 0.8^x

d. f(x)=2 x 0.8^2

Answer this question! 30 points and brainliest! only if you know the answer.

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Is it greater than or less than7*3_9*2