The upward slope of the supply curve reflects the
a. principle of specialization in production.
b. principle of diminishing marginal productivity
c. fact that price and quantity supplied are inversely related.
d. law of increasing substitution.

b. principle of diminishing marginal productivity

Explanation:

c) The relationship for the supply curve between price and quantity is directly related. Suppliers are more willing to produce at higher prices.

d) substitution effect will generate shift in the supply curve as other products chane their price not the slope.

a) specialization will increase efficiency has no relationshp with prices.

b) as each unit added generates a lower amount of retunr (ceteris paribus) The price must go up to represent the marginal cost

of the three mortgage options that demarco and tanya have to choose from, the balloon payment mortgage would be their best option, over adjustable payment and fixed payment plans.ultimately, the balloon payment plan would save demarco and tanya overall, in interest, would cost less monthly, and they would only have to make these payments for 8 years, opposing to 30 years for adjustable or fixed payment plans. 

overall, demarco and tanya would save $80,811 if they chose balloon payments over fixed payments, and would save $116,711 if they choose balloon payments over adjustable payments. benefits with choosing fixed payments over adjustable payments is that, in the end, the payments will still be $836.30 a month, while with adjustable payments, the initial monthly payments will be $763.38 to $1082.70 a month, ultimately leading to a more costly purchase. benefits with choosing fixed payments over balloon payments are not present. benefits in choosing adjustable payments over is that it has a lower interest rate, and starts with lower monthly payments initially. benefits in choosing adjustable payments over balloon payments include a lower interest rate, and lower initial monthly payments. benefits in choosing balloon payments over fixed payments include lower interest rates, lower overall price, lower monthly payments, takes less time to pay off, and does not require a downpayment. benefits in choosing balloon payments over adjustable payments include, lower monthly payments (when averaged), takes less time to pay off, and lower overall price.

hence, option c, balloon payments, is the best option for demarco and tanya to make this purchase, for it will save them a minimum of $80811, and a maximum of $116,711. 

c). housing, savings, and food and d). housing, food, and transportation. i hope this is good luck on the rest of your work.