Jalen has 30 ounces of a solution that is made of up 30% acid and 70% water. how many ounces of water must jalen add to this solution to create a solution that is 20% acid and 80% water?

In which form is the following function written? y = - 2(x – 3)(x + 5)

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?