1B. Find the sum of the following nine products: 1 × (10 – 1), 2 × (10 – 2), 3 × (10 – 3), … , 9 × (10 – 9). 1C. A square tablecloth covers an area of 256 sq. in. It is folded in half some number of times until the area that it covers is 8 sq. in. How many times was it folded in half?

1D. In a warehouse, a group of identical robots fills orders. In 10 minutes, 5 robots can fill 20 orders. If 8 robots worked at that same rate for an hour, how many orders would they fill?

1E. The number 2A5A0A2 is divisible by 99. What is the digit A?

b is 165 a is o

Step-by-step explanation:

1c) 5 times

Step-by-step explanation:

256/2 = 128

128/2 = 64

64/2 = 32

32/2 = 16

16/2 = 8

Now that we have divided the number by 2 since 1/2 is 2, we have 8.

Now all we need to do is count the number of 2's used to divided.

Then you will get your answer of 5.

M.O.E.Ms right?

30

step-by-step explanation:

times by times

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.