Bacteria and viruses both belong to the domain bacteria. 

Each chemical element has a unique atomic number, which indicates the number of ________ in its atoms.

Each chemical element has a unique atomic number, which indicates the number of ________ in its atoms.

Calculate the expression: x = 2+3. What is the value of x?

What can be concluded from this table? 

Scenario:A factory produces widgets, but during production, it emits pollution that affects the nearby community. The cost of producing one widget is $50. Each widget creates pollution that imposes an external cost of $20 per widget on the community.  Question: What is the socially optimal price of a widget that accounts for the externality?  

Refer to the image above. Base on these costs, we can discern that this firm is operating in the:

Suppose that you are given a $50 budget at work that can be spent only on two items: staplers and pens. If staplers cost $10 each and pens cost $2.50 each, then the opportunity cost of purchasing one stapler is how many pens? Enter your answer as a whole number. 

Refer to the table below.              Quantity Cost (in dollars) Fixed Costs (in dollars) Total Costs (in dollars) Average Total Costs (in dollars per unit) Average Variable Costs (in dollars per unit) Marginal Costs (in dollars per unit) 0 0 40 40 – – – – – – 1 15 40 55 55 15 15 2 35 40 75 37.5 17.5 20 3 60 40 100 33.3 20 25 4 90 40 130 32.5 22.5 30 5 125 40 165 33 25 35 6 160 40 200 33.3 26.6 40   If the firm produces 5 units that it sells for $39.00 each, what will its profits or losses equal?

Refer to the table below.              Quantity Cost (in dollars) Fixed Costs (in dollars) Total Costs (in dollars) Average Total Costs (in dollars per unit) Average Variable Costs (in dollars per unit) Marginal Costs (in dollars per unit) 0 0 40 40 – – – – – – 1 15 40 55 55 15 15 2 35 40 75 37.5 17.5 20 3 60 40 100 33.3 20 25 4 90 40 130 32.5 22.5 30 5 125 40 165 33 25 35 6 160 40 200 33.3 26.6 40   If the firm produces 5 units that it sells for $39.00 each, what will its profits or losses equal?