How many ounces of 21% alcohol solution in a 30% alcohol solution must be combined to obtain 48 ounces of a 24% solution

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Pls yall i really need the answer fr fr

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish