In a pen of goats and chickens, there are 40 heads. and 130 feet How many goats and chickens are there?​

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way