Ellen buys 5 videos that each cost c dollars a dvd for $30 and a cd for $20. write an expression in simplest form that represents the total amount spent

5c+50

Step-by-step explanation:

5c comes from the 5 videos that cost c dollars. 50 is when you add the $30 for the DVD and $20 for the CD together. You add those up to get the answer, but you'll have to solve for c first, then you can solve it.

  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.