While studying abroad, joe wants to make 3 batches of his mother's enchilada recipe to feed his classmates. The recipe calls for 22 oz of cheese for each batch. The local market sells cheese by the gram. How many grams of cheese should joe buy? Use 1 oz = 28 g and do not round any computations

When can u say there is no solution for a system of linear inequalities? explain your answer and show with a system and graph

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?