A computer store buys a computer system at a cost of $450.20. The selling price was first at $710, but then the store advertised a 30% markdown on the system. What is the current sale price? What is the percent mark up on the current sale
price?

i believe it is 497 after the 30% mark down

Step-by-step explanation:

i subtracted 30% from 710

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.