An account invested in a money market fund grew from $73,377.34 to $73,677,48 in a month what was the interest rate to the nearest tenth? what was the interest rate?

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.