Please help me on this

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Cass decided to sell game programs for the hockey game. the printing cost was over 20 cents per program with a selling price of 50 cents each. cass sold all but 50 of the programs, and made a profit of $65. how many programs were printed? letting p represent the number of programs printed, set up an equation that describes this situation. then solve your equation for p.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?