Solve the following quadratic equations. Reduce all fractions and radicals, no decimals. 2(x^(2)-7)= 6 and -3(-y^(2)+5)= 39

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?