A small business produces and sells the balls to fix cars are $20 in each bar cost $2.32 to produce each ball sells for $6.32 for the equation for the total cost see in the revenue or they use the graph a method to determine how many balls must be so to break even

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?