A sushi restaurant has prepared 22 portions of seafood, six of which had been left out too long and spoiled. If 9 of the 22 portions are served randomly to customers, what is the probability that at least one customer will receive spoiled food?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)