Zoom in to see better Blank one options: correct or incorrect

Blank two options: one-third, 3, one fourth, or 4

Blank three options: one fourth, 3, 4, one-third

Blank 4 options: one-twelfth, one-ninth, one-fourth

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

How many ordered pairs of positive integers satisfy xy=32?