2x^2-19x+9=0 does anyone know the answer

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?