To find 5/12-3/8, you have to find a common denominator. A common denominator of 12 and 8 could be 24. So, you multiply 5/12, both the numerator and the denominator by 2, which gives you 10/24. Then, you multiply 3/8 both by 3 to get the common denominator of 24. 3/8x 3 is 9/24. So, 10/24-9/24 is 1/24 because you only subtract the numerator and keep the denominator the same.
Assuming that by "16t2" you mean
:
First of all, let's compute the position at the two required times:


So, the ball traveled a total distance of
, during the time
.
The average rate of change is the ratio between these two:

Answer:
5ax + 5ay = 5a(x+y)
Step-by-step explanation: