Solve the quadratic equation by factoring.
9x^2 + 24x + 20 = 4
A. x=4
B. x= - 3/4
C. x= 4/3
D. x= - 4/3

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.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap