Answer:
Step-by-step explanation:
Any equation in which a proper relation with acceleration is shown can be solved for acceleration. (The first equation improperly represents the relationship between vf, vi, and at.)
a = (vf -vi)/t


highest common factor of 20 and 30=10

there will be 5 pens in each box.
Answer:
this is a linear function
Step-by-step explanation:
y = a + bx
in this case:
y = 800 - 114.29x
where:
y = accumulated depreciation
x = number of years
year accumulated
(x) depreciation (y)
0 0
1 114.29
2 228.58
3 342.87
4 457.16
5 571.45
6 685.74
7 800
The answer is 50. no guarantee this is.