Choose the correct answer. If y varies directly as x and inversely as z, and y = 5 when x = 4 and z = 3,...

27. Choose the correct answer.
If y varies directly as x and inversely as z, and y = 5 when x = 4 and z = 3, find y when x = 3 and z = 7.
28. Choose the correct answer.
The ratio of the length of the ____ opposite an acute angle to the length of the leg adjacent to the acute angle is called the tangent of a right triangle.
A) hypotenuse
B) edge