Pls help me with this question

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.