pleasee help me, A train travels from station P to station Q at a speed of 90km/h in 3hours 40minutes. The train stops at station Q for 25minutes before returns to station P. The time taken from station P to station Q. Calculate the average speed, in km/h, of the whole journey of the train

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.