Gabrielle needs 12 cups of pineapple juice for the fruit punch she is
making. The pineapple juice costs
$2.50 per quart. How much will
Gabrielle pay for the pineapple juice?

I’m really struggling can I have some explanations on this please?

What is the missing constant term in the perfect square that starts with x^2 -20x

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?