Which of the following expressions is equal to tan245°?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!