Dear Students, This a way to help you all, and that is Online tutions. We take classes for students from grade 2-9 (All Subjects). Contact us or notify us! Also, to all students who worries, We have a great teacher who is warm, accessible, enthusiastic and caring. This person is approachable, not only to students, but to everyone on campus. This is the teacher to whom students know they can go with any problems or concerns or even to share a funny story. And, To encourage creativity and higher-order thinking in a way that increases student performance. To build a long-term career as a middle school teacher in a position that offers opportunities for career growth, and to keep up with cutting-edge teaching technologies.

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 : )

Ibelieve that the answer is 1 but i could be wrong