The mean waiting time at the drive-through of a fast-food restaurant from the time an order is placed to the time the order is received is seconds. A manager devises a new drive-through system that believes will decrease wait time. As a test, initiates the new system at restaurant and measures the wait time for randomly selected orders. The wait times are provided in the table to the right. Complete parts (a) and (b) below.

You need to put the tables.

Step-by-step explanation:

We cant answer this without context

this is answer of 144 cubic meters

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.