Amelia is getting a new rug put in her room that she picked out at Home Depot. Her room is 8.5 feet wide and 12.3 feet long. If the rug she picked out at Home Depot costs $3.40 a square foot including installation, how much should Home Depot charge Amelia

$355.47 cents.

Step-by-step explanation

since you want to find the square footage of the entire room, hence Home Depot costs $3.40 per square foot, you would clearly need to find the area.  Basically find what 8.5 * 12.3 is and then multiply that number by 3.40. Once that is done, put a dollar sign on the answer and BOOM, you got it. :)

so $355.47 cents.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

what i would say the best answer is a. 40.5