Can someone me with this questions

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar.what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways