The graph shows the amount of money paid when purchasing bags of peanuts at the zoo.

write an equation to represent the relationship between the total cost (y) and the number of bags of peanuts (x)

a. y = 4x
b. y = 1/4x
c. y = 3x
d. y = 1/3x

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