Please answer this question...

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?