Please help!! markup and markdown word problems. 1. A boat is marked up 20% on the original price. The original price was $50. What is the sale price of the boat before sales tax?

2. Fred buys a video game disk for $4. There was a discount of 20%. What is the sales price?

3. A painting is on sale at 50% off. The sale price is $320. What was the original price?

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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3.07*10^-4

move the decimal 4 places to the left

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