Bryan wants to take group fitness classes at a nearby gym, but needs to start by selecting a membership plan. with the first membership plan, bryan can pay $32 per month, plus $2 for each group class he attends. alternately, he can get the second membership plan and pay $28 per month plus $3 per class. if bryan attends a certain number of classes in a month, the two membership plans end up costing the same total amount. how many classes per month is that? what is that total amount? if bryan classes per month, each membership plan costs $

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?