Michael = 9(28) = $252
David = 8(40) = $320
$320 + $252 = $572
They earn $572 combined; one week
<h2>Answer:</h2>
By digging tube wells
<h2>Explanation:</h2>
Water can be obtained from the land by digging a hole in the earth surface. The process is called boring. A tube well is a type of water well in which a long, 100–200 millimeters-wide, stainless steel tube or pipe is bored into an underground aquifer. In this way people who supply their own water to other areas or people generally obtain it by using tube wells where they attach a motor to it for speedy suction and then transfer the water to destination by using pipes.
Peru is a mixed kind of economy because being a developing nation it primarily depends on the service sector jobs followed by agriculture and manufacturing.
It has both capitalist market and private ownership regulated by government.
