BRAINLIEST PLS HELP

RQ = 4
RQ = -1
RQ = 15
RQ = 12

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?

What is the missing constant term in the perfect square that starts with x^2 -20x

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3