Rick buys a remote control car to resell. he applies a 10% markup. how would you write the expression.

X+10% i think thats a good whay to place it but im not sure how do you have a to write it

hope it is correct if not i'm srry i tried to

If i think this is what your asking, he should look at the grams or pounds/ounces and compare the to their cost then max can identify which one is proportional and which is not ( i think xd)