Type the expression that results from the following series of steps: Start with x and subtract 9.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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%

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line