A dog shelter recorded the number of dogs, d, in their care as well as the pounds of dog food, f the dogs consumed in a day. The table represents the relationship between the number of dogs, d, and the amount of
food they ate, f. Name the independent variable and the dependent variable and explain.
Dogs 10 15 20
30
20 30 40 50 60
25
Food (lbs)

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 : )

Is a for each hour he works,his earnings go up by $4