They are 3 boys and 5 girls standing at the entrance to the school fair. each child is holding 3 balloons. one sixth of the balloons are red. there are twice as many green balloons as red ones. the rest are blue.

Consider the function f(x)=-5x+3 what is f(-2)

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.