Answer:
The cost of the fencing is $273
Explanation:
* Lets explain how to solve the problem
- Sam is planning to fence his back yard
- Every side of the yard except for the side along the house is to
be fenced
- The fencing costs $3/yd and can only be bought in whole yards
- The side of his yard opposite the house measures 35 yd
- The other two sides of his yard are 28 yd
* Lets solve the problem
∵ The length of the yard is the sum of the sides whose to be fenced
∴ The length of the yard = 28 + 35 + 28 = 91 yd
∵ The cost of the fencing is $3 per yard
∴ The cost = 91 × 3 = 273
∴ The cost of the fencing is $273