I’ll mark the brainiest

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

Acircle has a circumference of 28.36 units what is the diameter of the circle

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?