A pair of shoes is on sale for 80% of the original price. The sale price is $60. What was the original price?

the original price was $75

Step-by-step explanation:

given:

A pair of shoes is on sale for 80% of the original price.

The sale price is $60.

find:

What was the original price?

solution:

sale price =  % times original price

$60 = 0.80 x OP

OP = $60 / 0.80

OP = 75

therefore,

the original price was $75

(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.

the first option is the answer.