Duke is buying a new cellphone case that is on sale for 20% off. The sale price is $16 before tax. What was the original price of the cellphone case?

pls help i will give brainliest! :)

I don’t know the rest but I can give you the full explanation on the percent

Step-by-step explanation:

First, convert the percentage discount to a decimal. A 20 percent discount is 0.20 in decimal format. Secondly, multiply the decimal discount by the price of the item to determine the savings in dollars. For example, if the original price of the item equals $24, you would multiply 0.2 by $24 to get $4.80. Hope it helps! Have a great day!

(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.