Which expression has a value of 1, when x = 2 and y = 4? HURRRYRYRYRYRYRYRYYR

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

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

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.