Amanda decided to spend 4 1/2 hours studying over the weekend. She spent 1 1/5 hours studying Friday afternoon and 3 1/4 hours on Saturday. How much longer does she need to spend studying on Sunday in order to reach her goal?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

What is the factored form of the following expressions? d^2 – 13d + 36

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%