Which could be the first step in solving the equation represented by the model below? 3 x tiles and 4 negative 1 tiles = 2 x tiles and 5 positive 1 tiles Add 4 positive unit tiles to each side. Remove 4 unit tiles from each side. Add 6 positive unit tiles to each side. Remove 6 unit tiles from each side.

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

The sum of four times a number and three is two times the number minus twenty nine