GOOD AT GEOMETRY? WILLING TO HELP?? COME RIGHT THIS WAY ALL HELP IS APPRECIATED!! I WILL GIVE YOU 25 PTS AND BRAINLIEST IF YOU HELP. PLEASE DON'T WASTE MY TIME.

Find the missing dimension extra points

One side of a rectangle is 7 centimeters shorter than six times the other side. find the length of the longer side if we also know that the perimeter of the rectangle is 266 centimeters.

Haquira is baking cookies to put in packages for a fundraiser. shaquira has made 8686 86 chocolate chip cookies and 4242 42 sugar cookies. shaquira wants to create identical packages of cookies to sell, and she must use all of the cookies. what is the greatest number of identical packages that shaquira can make?