Answer:
y = 56 and x = 8 i hope this helps! :)
Explanation:
Suppose y varies directly as x, and y=21 when x=3. find y when x = 8
so to find the value of y we are going to divide 3 from the x and the y given up above
y = 7 and x = 1
now we are going to multiply both variables by the value of 8
y = 56 and x = 8