Antonio bought a shirt 1/2 off. He paid $21.75 for the shirt s. Draw a bar diagram to find the original cost of the shirt.

I don't get how to draw a bar diagram for this problem. Can someone please help me?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π