Salma bought 4 CDs that were each the same price. Including sales tax, she pald a total of $70.40. Each CD had a tax of $1.20. What was the price of each CD before tax?

$16.40 per CD before tax

Step-by-step explanation:

4 CDs cost $70.40

70.40 / 4  = 17.60 (this includes the tax)

Remove the tax

17.60 - 1.20 = $16.40 per CD before tax

no i do not : ( what is it?

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.