PLEASE HELP the regular price of a scooter is $65.50 it is on sale for $52.40 what is the percent decrease from the regular price to the sale price of the scooter

What is the perimeter of square abcd? units units 28 units 37 units

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat