Regina has a farm with animals. She has 20 cows and four times more pigs. Someone told her, that she could sell all the animals and earn $400 for each pig and $800 for each cow. How much money would she earn if she would sell all the animals from the farm?
Regina has 4 pigs/cow * 20 cows = 
<gadget id="calculator">4*20</gadget>
<output>80</output>
80 pigs.
She could sell the pigs for 80 pigs * $400/pig = $
<gadget id="calculator">80*400</gadget>
<output>32_000</output>
32000.
For the cows Regina would get 20 cows * $800/cow = $
<gadget id="calculator">20*800</gadget>
<output>16_000</output>
16000.
In total Regina would earn $16000 + $32000 = $
<gadget id="calculator">16000+32000</gadget>
<output>48_000</output>
48000.

<result>48_000</result>