Question

You want to adopt a puppy from your local animal shelter. First, you plan to build an outdoor playpen along the side of the house, as shown below. If dog grass costs $1.70 a square foot, how much will you spend?

A) 23.80
B) 30.60
C) 35.70
D) 40.80

Answer 1

the answer is c because three times three is nine multiplyed by one is nine times six

Answer 2

You will spend $35.70 .

Explanation:

Plan to build an outdoor playpen contains 1 rectangle and 2 right angled triangles

Length of rectangle = 6 feet

Breadth of rectangle = 3 feet

Area of rectangle =
`Length * breadth = 6 * 3 = 18 ft^2`

Height of triangle = 3 feet

Base = 1 feet

Area of triangle =
`(1)/(2) * Base * Height =(1)/(2) * 1 * 3 = 1.5 feet^2`

Area of another triangle is same as it has same base and same height

So, Total area = 18+1.5+1.5 = 21 sq/feet

Cost of grass of 1 sq.feet = $1.70

Cost of grass of 21 sq.feet =
`1.70 * 21=35.70`

Hence You will spend $35.70 .