Shen has a number cube with faces numbered 1 through 6. he will roll the number cube one
time. what is the probability that the number cube will land with a number greater than 2 on
the top face? write your answer as a fraction.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Is the square root of 4 plus the square root of 16 rational?