Emily hires someone to walk her dog during the day. The cost for 2 walks is $9.00.

What is the cost for 5 walks?

2 walks is $9.00 so first i would find the unit rate

Step-by-step explanation: To find the unit rate you would have to get 2 to 1 which means we would have to divide it by 2. 2 / 1 is 1 then we also have to divide 9 by 2 which would get you 4.5. Now you know that 1 walk is $4.50 , but you need to know how much it coust for 5 so you multiply by 5.         $4.50 x 5 = $22.50

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

a) 7x=7

step-by-step explanation: