Georgia kassem installs fencing. she is paid $7.50 per hour for an 8-hour day and time and half for overtime for any work over 8 hours per day. what is her pay for a week when she worked, 7, 12, 9, 10 and 10 hours?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?