I’m always struggling with these math problems.

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question