15. Luisa is choosing a line-up of CDs to play from beginning to end at her party. She has 12 CDs from which to choose and time to play only 5. How many ways are there for

Luisa to arrange the musical line-up?

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

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%