The ball takes 6 seconds to reach the ground.
<u><em>Explanation</em></u>
Height of the ball after
seconds is represented by....

The height of the ball is 0 feet when it hits the ground. So, for finding the number of second the ball takes to reach the ground, <u>we will just plug
into the above equation and then solve for
.</u>
Thus...

Using zero-product property....

and
(Negative value is ignored as time can't be negative)
So, the ball takes 6 seconds to reach the ground.
Answer: f(x)= .40c
If c equals 3 lets:
Substitute C for 3
.40(3) = retail price per each silver
20% = 0.20
50 * 0.20 = $10 discount
50 - 10 = 40
The price after 20% discount is $40
Answer:
Step-by-step explanation:
73.44
if it is a 20% tip = 12.24
61.20 + 12.24= 73.44