Help anybody? If so thanks

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.