A repeating decimal + a fraction is what

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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

2.5 milligrams is equivalent to how many grams