In the figure to the right, it AC 19 and BC-16, what is the А
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The radius is approximately (Round to the nearest tenth as needed)
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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?