You purchased paint for the rooms in your house. you have 1.5 cans if paint left. you painted 4 rooms and each room required 2 cans of paint. you spilled 1/2 of a can if paint. how many cans of paint did you purchase?

Find the solution of system of equation y= x-4 y=4x+2

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?