One day, your friend claims that if you are brushing your teeth correctly and were to add up the total time you brushed in a year, it would equal 1 full day. You don't think that can be right, so you
do a little digging
You find that dentists recommend a person brush twice a day for a duration of 2 minutes each
time.
How many hours in total should you spend brushing your teeth each year? (Assume 1 year =
365 days)
hours each year

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.