What is the approximate value of the expression below?
-3,033 ÷ (-56)

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

What is the y-intercept of the line given by the equation

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