One number is 5 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 555, find the numbers.

Which is the graph of the linear equation x – 2y = 6?

The roof of a farm silo is the shape of a hemisphere and is made of sheet tin. if the diameter of the silo is 126.5 feet, how much sheet tin is needed to make the roof? (use π = 3.1416.)

The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?