10. the spinner below has 12 congruent sections. sarah will spin the arrow on the spinner twice. what is the probability that the arrow will and on a shaded section of the spinner on both spins?

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

What are different types of statistical programs

See attachment below and find the equivalent of tan(∠qsr)