If x= 1/2y the which expression represents? 1/x

A 1/2y
B -1/2y
C 2y
D -2y​

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83