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The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.