Help please! 0, 7, 18, 33, 52
Write an explicit expression that can be used to find the nth term of the sequence above. What is the 18th term of the sequence?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?