Answer:
y=-5/4x+3
Step-by-step explanation:
Y-intercept is 3 so +3 and the slope is -5/4 so -5/4x.

The fixed cost is $150, while the per-student cost is $6.
Answer:
1/4 or 0.25
Step-by-step explanation:
P=2l+2w
Since it is given that P=26m, length is 5 more than its width (w+5), we'll work it out in the perimeter formula.
26=2(w+5)+2w
26=2w+10+2w
26=4w+10
4w=26-10
4w=16
w=4
Thus the width is 4m. Let's find the length.
l=w+5
l=4+5
l=9
The length of a pen is 9m.