A train car has 23 rows that hold 4 seats each. If 3 train cars are coupled together, how many people can the train hold?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with