4, what is the length of EF? Please help

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

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c