1. The perimeter of a rectangular room is 80 feet. Let x be the width of the room (in feet)
and let y be the length of the room (in feet).
Select all of the equations below that could
model this situation.
A. 2(x + y) = 80
B. 2x + 2y = 80
C. x + 2y = 80
D. 2x + y = 80

the answer is (-4,-4)

hope this ! : d

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.