The left and right page numbers of an open book are two integers whose sum is 557. find these page numbers

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

What properties allow transformation to be used as a problem solving tool

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain