The probability of rolling a number less than 3 on a number cube is 2/6. Jennifer rolls a number cube 60 times. How many times should Jennifer expect to roll a number less than 3? A. 10
B. 20
C. 30
D. 40
E. 50

Please help me!!

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily