Solve: 3a - 2.4 = 5.1 a =

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

What is the solution of the systems of equations? y=2/3x+3 x=-2

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%