I need help i need this correct to pass math

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

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Solve the equation. 2x - 8(x+1)= 6(2x - 3)