Kevin has 74 baseball cards. If he divides them into 4 piles, how many baseball cards will be in each pile? A. 16
B. 20 r. 1
C. 16 r. 3
D. 18 r. 2

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

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

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )