Answer:
20% of $50 is $10. This means that the pair of jeans now cost $60 since it got marked up.
Step-by-step explanation:
Answer:

I don't really remember this very well, because it confusing me
Just subtitute 5 as x in the equation given for f.
2(5)+8=18.
150 x 12 = 1800
55 x 12 = 660
1800 + 660 + 45000 = 47,460
(3 hours) / (8 friends) = <em>3/8</em> hour per friend