Please solve number 15 and 16, i know that the answers are 42° and 18° but I need to know how to get to that answer. If the answer is correct I will give brainliest. Thank you.

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

Two parallel lines are crossed by a transversal.what is value of x

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income