Jerry and his family at Old Chicago they want them they want to visit Willis Tower hang out at Navy Pier and Shop on Michigan Avenue before the dinner reservations at 7 p. m. they plan to spend 1 hour and 25 minutes at Willis Tower 3 hours and 15 minutes at Navy Pier in 1 hour and 30 minutes shopping what is the latest time Jared family can start at 12 Chicago and still make it to dinner on time?

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 : )