What business practice uses buying
out the competition in an attempt to
control the market?

I can't understand?

Explanation:

sorry

35 is your answer because i looked it up

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.