Lauren spent 3/5 of her money on a refrigerator. the refrigerator cost $756. how much money did she have left?

tell me the final answer and how you got it.

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?

Percent increase and decrease. original number: 45 new number: 18