What is the slope of (6,2) & (-6,8)​

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

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

What is always true when two whole numbers are subtracted?