Acity government imposes a proportional income tax on all people who earn income within its city limits. in 2004, the city's income tax rate was 0.04 (4 percent), and it collected $20.00 million in income taxes. in 2005, it raised the income tax rate to 0.05 (5 percent), and its income tax collections declined to $19.20 million. what happened to the city's income tax base between 2004 and 2005? a. it fell by $0.80 million. b. it fell by $116 millionc. it ross by $116 milliond. it cannot be determined since the tax rate changed

B) it fell by $116 million

Explanation:

If during 2004 the city was able to raise $20 million with a 4% income tax, then the city's income base was:

($20 million / 4%) x 100 = $500 million

If during 2005 the city was only able to raise $19.20 million with a 5% income tax, then the city's income base lowered to:

($19.20 million / 5%) x 100 = $384 million

This means that the city's income base was reduced by $116 million (= $500 million - $384 million)

answer; ///(c) the way a government controls the supply,availability,and value of money;

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'