Gerald needs to purchase baseballs and bats for his youth baseball league. he'll need at least 25 pieces of equipment, but he only has $615 to spend. baseballs cost $20 each and bats cost $35 each. which is a combination of baseballs and bats that gerald can afford to buy?

i think it is 18

step-by-step explanation:

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.