Alanguage arts test is worth 100 points. there are a total of 26 questions. the spelling questions are worth 2 pts and vocab is worth 5 pts. how many of each type of question is there?

Consider the graph of the exponential function y=3(2)×

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.