Deon has 12 milliliters of 5% solution. he also has a solution that has a concentration of 30%. how many milliliters of the 30% solution does deon need to add to the 5% solution to obtain a 20% solution

30 determine the coefficient on x 12 y 24 x12y24 in ( x 3 + 2 x y 2 + y + 3 ) 18 . (x3+2xy2+y+3)18. (be careful, as x x and y y now appear in multiple terms! )

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Someone me! if you’re smart you can solve this!