7(y + 6) = 21x + 14
Is this true or false?

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

What are the solutions to the equation 4x2+3x=24-x