Manny ordered 16 skateboard wheels. if he sold 4 wheels to brad, how many skate boards can he put wheels on if each board 4 wheels?

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi