4,13,31,67 ___
What's the rule ?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?