Last semester, Jim earned an A in his 5-credit MATH 128 class, a B+ in his 4-credit ENG 152 class, a C-is his 2-credit COM 210 class, and a A- in his 4-credit HIST 151 class.
What was his GPA for the semester?

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