Answer:
49 leaves
Step-by-step explanation:
7 days x 7 leaves per day = 49 leaves in total
X would be 0 while Y would be 4
3x+y=4
-(2x+y=4)
----------------
x=0
Plug in x to any of those two equations in their original form
3(0)+y=4
0 + y = 4
y = 4
Divide 56 by 2 and you get 28,therefore 28 chips per box
23 miles per hour is 2024 feet per minute
Alan goes at 1600 and Barry goes at 2024
So, Barry goes faster
Hope this helps!