Solve this system of equations
32=ab^2
128=ab^3

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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

What is r i 4.5+10r=-6.5 with work pls