An arrangement of marbles has 12 marbles in the first row and 10 rows in all. In each successive row one marble is added.What is
the explicit rule for this situation, and how many marbles will be in the 10th row?Drag and drop the answers into the boxes to match the situation.Explicit ruleNumber of marbles in the 10th rowAn = 11 + 11n, An = 12 + n, An = 11 + n, An = 12 + 10n, 19, 20, 21,
S=Selling price 135 V=Variable cost 75 F=Fixed cost 3300 Let quantity be Q The formula to break even is 135Q-75Q-3300=0 Solve for Q 60Q-3300=0 60Q=3300 Q=3300/60 Q=50 So the store must sell 50 bicycles to break even