Nancy has 100 candy bars. she ate 47 of them in one day. then she gave 12 of them to her friend david . how much does she have now?

41 Candy Bars

Step-by-step explanation:

She first has 100 candy bars. If she ate 47, she will have 53. If she gives away 12 after, she would have 41.

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

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.