Suppose you work for a large coffee distributor that has a secret coffee blend it sells to local stores. You mix the Queen City blend with the Arabian Mocha blend, but always in the same proportion. Yesterday, you mixed 50 pounds of the Queen City blend with 15 pounds of the Arabian Mocha blend. Today, there is 40 pounds of the Queen City coffee left in stock. How many pounds of the Arabian Mocha coffee should you mix with it to get your secret blend?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?