Irene needs a total of $250 to buy a bicycle. She has already saved $70. If she saves $10 a week from her earnings, what is the least number of weeks she must work to have enough
money to buy the bicycle?

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

Im so bad at fractions they are not my best math thing to work on

What graph represents an even function