How do properties of elements in the same group of the Periodic Table compare? I. Elements in the same group exhibit similar chemical reactivity

II. Elements in the same group have the same number of electron shells

III. Elements in the same period share similar physical properties

IV. Elements in the same group contain the same number of valence electrons

a- II, IV
b- I, II, IV
c- I, IV

Need today! will get brainliest for right answer! compare and contrast absolute advantage and comparative advantage.

Turtle corporation produces and sells a single product. data concerning that product appear below: per unit percent of sales selling price $ 150 100 % variable expenses 75 50 % contribution margin $ 75 50 % the company is currently selling 5,600 units per month. fixed expenses are $194,000 per month. the marketing manager believes that a $5,300 increase in the monthly advertising budget would result in a 190 unit increase in monthly sales. what should be the overall effect on the company's monthly net operating income of this change?

Aproject currently generates sales of $14 million, variable costs equal 50% of sales, and fixed costs are $2.8 million. the firm’s tax rate is 40%. assume all sales and expenses are cash items. (a). what are the effects on cash flow, if sales increase from $14 million to $15.4 million? (input the amount as positive value. enter your answer in dollars not in (b) what are the effects on cash flow, if variable costs increase to 60% of sales? (input the amount as positive value. enter your answers in dollars not in millions). cash flow (increase or decrease) by $