Find the value of:
(2 cos 0° + sin 45°)(tan 45º - cos 45º + sin 90°)​

Given the following statements, which is the best

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.