What is the solution of the equation 2x-y=9

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

Common binomial factor of 6x(3x+7)+5(3x+7)