The following items were bought on sale. Complete the missing information. (Instructions: Add $ symbol before the Amount , % after the discount )

1.) 64$

2.)20% off

3.)25%off

Step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus