Write an expression using an exponent to represent the amount of money adrian will have save by month 4

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Identify one charcteristic of exponential growth

Y+ 2/y is it a polynomial in one variable or not? and if so, why?