The ratio of the sides of a triangle is 2: 6: 7. if the perimeter is 195 meters, what is the length of the longest side

The heaviest 16% of all men in weight weigh more than how many pounds ?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?