Write a description of how a diagram can you solve 2×40

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

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?