What is the answer? Please help

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

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Item 1 solve for s. s+24=90 −114 −66 66 114