Write the first three terms in binomial expansion, expressing the result in simplified form (X+2)^19

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists