Part 1) Mr. C decided to save on installation fees on his satellite system so he decided to install it himself. He used a 13 foot ladder to climb the roof of his house. As he stepped on the the top rung of the ladder the bottom of the ladder started slinding away from the wall at the rate of five feet per second. How fast was Mr C falling when the top of the ladder was 5 feet from the ground? Part2) Fortunately, Mr C didn't hurt himself when he fell but decided to take some aspirin anyway. He went into the house and used a small paper conical cup that was 5 inches high and 3 inches wide. He then poured water from a pitcher at the rate of 1/2 cubic inch per minute. How fast was the water level rising in the cup when the water was 3 inches high?

I’ve taken this before. the answer is c

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )