Rachel works at a bookstore. on tuesday, she sold twice as many books as she did on monday. on wednesday, she sold 6 fewer books than she did on tuesday. during the three days rachel sold 19 books. create an equation that can be used to find m, the number of books rachel sold on monday. equation:write it in order like l equation: l a0- l a1 = l a2

Lets put Monday as 'm'

Monday: m

Tuesday: 2m

Wednesday 2m-6

The Three Days: 5m-6

Final 5m-6=19

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

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.