Translate the sentence into an equation.
Seven times the sum of a number and 9 is 2.

What is a graph with a never ending line called?

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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%