Trey has answered 15 emails. This is 20% of emails he must answer how many emails does he needs to answer

60

Step-by-step explanation:

15 times 5 is 75 75 minus 15 is 60 so the answer is 60

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.