Determine the probability of having 1 girl and 3 boys in a 4-child family assuming boys and girls are equally likely.   the probability of having 1 girl and 3 boys is?

In pqr the obtuse angle is 105 and the shorter sides measure 4 and 7 units rounded to the nearest tenth what is the area of triangle pqr

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?

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?