How do I solve the question 3/4+1/2

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.