Please can someone help on this ive never attempted or understand this sort of question Q = 1/6 p^2

p=13.6 correct to 3 significant figures

By considering bounds work out the value q to a suitable degree of accuracy GIVE A REASON FOR YOUR ANSWER

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.

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