1) Rex has 3 sons and 4 daughters. A. The ratio of the number of sons to the number of daughters is of the number of daughters. B. The number of sons is 2) The volume of juice in Glass A is of the volume of juice in Glass B. A. Draw a block model to compare the volumes of juice in the two glasses, B. Express the volume of juice in Glass B as a fraction of the volume of juice in Glass A C. Find the ratio of the volume of juice in Glass A to the volume of juice in Glass B. D. Find the ratio of the volume of juice in Glass A to the total volume of juice in the two glasses. 3) Larry, Irma and Gary joined a spelling bee. The ratio of Larry's score to Irma's score to Gary's score is 4:5:7. A. Draw a block model to compare the scores of the three children. B. What is the ratio of Larry's score to the total scores of the three children in simplest form? C. What fraction of Irma's score is Gary's score? D. What fraction of the total scores of the three children is Irma's score?