How many ounces of pure water must be added to 30 ounces of a 30% solution of acid to yield a solution that is 20% acid?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?