Due in 10 min which expression is equivalent to rm ÷ rn? rm − n rm + n rm ⋅ n rm ÷ n

Solve 2x+y=3 x+y=5 in substitution method

Guys i really need or i have to stay late up night

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