What are the x intercepts of f(x)= -16x^2 + 22x + 3

Which expression is equivalent to? assume x > 0 and y > 0.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth