John receives a bill for $500 from the hospital for a CAT scan he had done. His policy states that the insured is responsible for the first $100 of each CAT scan and 30% of the remaining chargesHow much will John owe the hospital ? A)$100 B)$130 C)$220 D)$150

At the beginning of the year, adrian's savings account balance was \$28$28. each week, he deposits another \$15$15 into that account, and he doesn't spend any of his savings. is his savings account balance proportional to the number of weeks since the start of the year?