30. An electronic toy robot sells for $55 less a $5 rebate from the manufacturer. What percent
discount is the rebate, to the nearest tenth of a
percent? show your work

Step-by-step explanation:

55*9%= 4.95 or 5.00

If you start at 10% you get 5.50. Go down a % to get the 4.95.

idk this answer sorry cant on this one.

step-by-step explanation:

  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.