HELP ME PLZ ITS DUE IN 10 MIN HELP PLZ

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza

What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9