Question 1204232
<font color=black size=3>
Answers:
(a) <font color=red size=4>$60</font>
(b) <font color=red size=4>32 km</font>



Work Shown
(a)
C = 2.25*d + 15
C = 2.25*20 + 15
C = 60


(b)
C = 2.25*d + 15
87 = 2.25*d + 15
87-15 = 2.25*d
72 = 2.25*d
d = 72/(2.25)
d = 32
</font>