the price of a stock increased 1/2 Cent Monday morning on Monday afternoon the price stock decrease 5/6 sent on Tuesday Morning the price increased 1/4 Cent what is the overall change in the Stock's price

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?