What is a reasonable height for a 5-story building?

A 16 mm
B 16 km
C 16 cm
D 16 m​

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Which value would be a solution for x in the inequality 47-4x< 7

What is the lcm of 16 and 40 ? 24 and 40 ?