Luke is building a storage building and needs to have a slab of concrete poured. he knows the contractor charges an initial cost of $95 plus an additional $3.50 per square foot of concrete. which equation can be used to determine the cost (y), in dollars, to pour a concrete slab with an area of x square feet?
a) y = 3.5x + 95
b) y = 9.5x + 3.5
c) y = 95x + 3.5
d) y = 98.5x

A)  

Step-by-step explanation:

Given: The initial cost charged by contractor = $95

The additional cost charged by contractor per square foot of concrete= $3.50

Then the total cost to pour a concrete slab with an area is given by :-

Let x represents the area of concrete slab in square feet.

Then the equation can be used to determine the cost (y), in dollars, to pour a concrete slab with an area of x square feet is given by :-

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

a

step-by-step explanation: