Dave is loading a wheelbarrow with bricks that each have the same weight. when they wheelbarrow had 40 bricks, it weighed 145 pounds. when the wheelbarrow had 45 bricks it weighed 160 pounds. what is the initial value?

So me with this math problem. find the value of x the table shows the masses of 50 eggs. mass: 40-44 eggs: 6 mass: 45-49 eggs: x mass: 50-54 eggs: 12 mass: 55-59 eggs: 10 mass: 60-64 eggs: 7 mass: 65-69 eggs: 2 you!

Two parallel lines are crossed by a transversal. what is value of x

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?