Dimensions for an office floor plan is 15ft. by 15ft and 28ft. by 28ft. tile runs $1 per square foot and carpeting $5 per square foot. what is the estimated total cost for the floor coverings installed

$2520

Step-by-step explanation:

Taking the dimensions of the office floor from the plan to be;

Area of the floor to be covered will be the product of the sides dimensions

Cost of putting tile on the floor

1ft²=$1

420ft²=?

=

=$420

Cost of putting a carpet on the floor

1ft²=$5

420ft²=?

=$2100

Estimated cost

Total estimated cost =cost for putting tiles+cost for putting carpet

=$420+$2100=$2520

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10