As the tax rate decreases, the absolute value of the tax multiplier

A factory urgently needs to hire some workers. The factory owner is willing to pay a wage of $15 per hour to responsible workers and is unwilling to hire workers who require constant monitoring

On average, he expects 5 out of 10 workers who have come for an interview to be sincere. How much should he offer to pay the workers he hires? A) $15 per hour B) $7.50 per hour C) $10 per hour D) $8 per hour

Suppose that when the price per ream of recycled printer paper rises from $4 to $4.50, the quantity demanded falls from 800 to 600 reams per day

Using the midpoint formula, what is the price elasticity of demand (in absolute value) over this range? A) 0.003 B) 0.41 C) 2.43 D) 4