Write the following word phase as a mathematical equation. The sum of 7 and twice a number, squared.

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%

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180