The expression 2*3*4*5+1 is equal to 121, since multiplication is carried out before addition. however, we can obtain values other than 121 for this expression if we are allowed to change it by inserting parentheses. for example, we can obtain 144 by writing (2*(3*4))*(5+1) = 144. in total, how many values can be obtained from the expression 2*3*4*5 + 1 by inserting parentheses? (note that rearranging terms is not allowed, only inserting parentheses).

i would say b) is your answer

sorry if im wrong

step-by-step explanation:

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.

ok so what's the question?

step-by-step explanation: