Which of the following is true? achecks and debit cards both withdraw money directly from a bank account. bdebit cards offer the highest level of fraud protection. cdebit cards often have a higher interest rate than credit cards. dchecks are the most widely accepted form of payment

Suppose either computers or televisions can be assembled with the following labor inputs: units produced 1 2 3 4 5 6 7 8 9 10 total labor used 3 7 12 18 25 33 42 54 70 90 (a) draw the production possibilities curve for an economy with 54 units of labor. label it p54. (b) what is the opportunity cost of the eighth computer? (c) suppose immigration brings in 36 more workers. redraw the production possibilities curve to reflect this added labor. label the new curve p90.