Answer:

Step-by-step explanation:
Given
Straight Line, PS
Such that


Required
Find PS
From the attachment above, it can be seen that RS is a continuation of PS;
This implies that

Substitute
and 

Collect like terms


Hence, the length of PS is 
$.39 times x=cost
x=pounds
Answer:
0.875
Step-by-step explanation:
P(H=0) = 0.125
P(H=1) = 0.375
P(H=2) = 0.375
P(H=3) = 0.125
P(H<3) = P(H=0) + P(H=1) + P(H=2)
P(H<3) = 0.125 + 0.375 + 0.375
P(H<3) = 0.875
124.8 miles. 104/50=2.08. 2.08x60=124.8.