Characters struggle to find a solution to the conflict is element of friction

How can you check that you have correctly converted frequencies to relative frequencies?

Griffin ordered a pair of sneakers online. he had a $22 credit that he applied toward the purchase, and then he used a credit card to pay for the rest of the cost. if the shoes cost $58, how much did griffin charge to his credit card when he bought the sneakers?

Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )