Your favorite dog groomer charges according to your dog's weight. If your dog is 15 pounds and under, the groomer charges a flat fee of $35. If your dog is between 15 pounds and up to 40 pounds, then she charges a flat fee of $40. If your dog is over 40 pounds, then she charges $40 plus an additional $2 for every pound the dog is over 40 pounds. Let represent the weight of the dog. Which of the following piecewise functions represents the above problem?

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

i think the answer is true

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -