A rectangle has two pairs of sides of equal length. Explain how you can find the unknown length of two sides when the length of one side is 4 units, and the perimeter is 14 units.

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

This is about circle theorems. someone asap : (

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