12. find a ∩ b if a = {4, 7, 10, 13, 17} and b = {3, 5, 7, 9}.
ø
{7}
{3, 4, 5, 7, 9, 10, 13, 17}

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]