43.77 as a mixed number in simplest form

Use circumcenter theorem to solve for the given values

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

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