Which is the simplified form of the expression?

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

Multiply sixth of sixty six by a half of ten show step by step method

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.