There are a total of 76 teachers and students watching a school play. There are 4 teachers and 40 girls. Write the ratio of boys to girls in lowest terms.

Dancing Stars sells ballet, tap, and jazz shoes. For the upcoming year Dancing Stars plans to sell 15,000 ballet shoes, 30,000 tap shoes, and 5,000 jazz shoes. What is the ratio of jazz shoes to ballet and tap shoes?  5.  The average of 4, -8, 6, 14, -3 is . 6.  Jessica wants to calculate her grade in her accounting class.She has four test grades (82, 65, 71, and 77) and a homework grade (92). Her highest test grade counts for 25% of her grade, her lowest test grade counts for 15% of her grade, the two remaining tests count for 20% each and her homework grade counts for 20%. What is Jessica's weighted average in the class rounded to the nearest whole number?

In a recent year, a winery produced 4480 bottles of wine from 8 tons of grapes. They expect the demand to reach 7680 bottles next year. How many tons of grapes will they need? ..... Let x be the number of tons of grapes they will need. Translate the problem to a proportion. Do not include units of measure. Bottles → + Bottles Grapes X Grapes (Do not simplify.)

320 is what percentage of 4