Answer the question please

Acylinder has volume 45π and radius 3. what is it’s height?

How many solutions does the nonlinear system of equations graphed below have?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%