Susan plans on studying four different subjects (math, science, french, and social studies) over the course of the summer. there are 100 days in her summer break and each day she will study one of the four subjects. a schedule consists of a plan for which subject she will study on each day. (a) how many ways are there for her to plan her schedule if there are no restrictions on the number of days she studies each of the four subjects?

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 : )

The expression -8/-4 has the same value as -18/-9.