10p+9p=12 and i've tried everything and i can't find it

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm