Final answer:
Angelo can check if his coffee and doughnut order is within his budget by calculating the total cost and comparing it to his available cash. He should consider the price per item, and the quantity he needs, and ensure that the total cost is within the cash he plans to use.
Step-by-step explanation:
Angelo can determine whether his coffee and doughnut order is within his budget constraint by first calculating the total cost of the items he wishes to purchase. He will need to know the price of each coffee and doughnut, and then multiply those prices by the quantities he wishes to buy. Once he has the total cost, he can compare that amount to the cash he has available for the purpose. If the total cost does not exceed his available cash, then his order is within his budget. However, if the total cost is more than the cash he has, then Angelo will need to adjust his order to fit his budget or find additional funds.
As seen in the concept presented where Alphonso faces a similar situation, choosing between burgers and bus tickets, every point on or inside the budget constraint represents an affordable combination. To fit within his budget, Angelo might have to consider the tradeoff between the number of coffees and doughnuts, just as Alphonso has to consider the tradeoff between bus tickets and burgers. By understanding his budget constraint and the cost of one more unit of a good, such as Alphonso's additional burger equating to the need to forgo four bus tickets, Angelo can make informed decisions about his purchases.