3. Devin is practicing his golf at the driving range. The
equation that represents the height of his ball is, s=-0.5t
+ 12t, where s is the distance in feet nad t is the time in
seconds.
a. What is the highest that his ball will ever go?
b. If the ball is at 31.5 feet in the air, how many seconds
have gone by?
C. How long will it take for the ball to hit the ground?

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

i believe the answer is 323 ft

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %