Answer:
1. $109.20 2. $46.80
Step-by-step explanation:
Doing the math, we find that 30% of 156 (138+18) is 46.80, which answers the second part of this problem. Plugging this value into the first part of the equation gives us what Stefan originally paid.
Good luck! Hope this helps!
 
        
             
        
        
        
Answer:
6.4 minutes
Step-by-step explanation:
The question gave us the following details:
Average speed = 60mph
Time spent on trip = 8 hours
Average speed of express train on way back = 75mph
T = distance/speed
D = distance
V = speed
T = d/v
d = v(t)
d = 60 x 8
= 480
Such that 
480/75
= 6.4 hours.
That is 6 hours 40 minutes is the length of time it would take on the trip home. 
Thank you!
 
        
             
        
        
        
Answer:
log2(M)+log3(N)
simplifies to:
simplified step by step
Step-by-step explanation:
0.30103m+0.477121n. 
the answer is
0.39103m+0.477121n
 
        
             
        
        
        
Foil the right side. Multiply first, outer, inter, and the last terms. The right side is equal to x^2 + 11x + 18x. N is 11.