The table shows that the ratio of boys to girls at Midtown Middle School is 3 to 4. A 2-column table with 4 rows. Column 1 is labeled Boys with entries 3, 12, 15, 75. Column 2 is labeled Girls with entries 4, question mark, question mark, question mark.

Which classes have an equivalent ratio of boys to girls? Check all that apply.

A. a math class with 12 boys and 16 girls

B. an English class with 14 boys and 14 girls

C. a science class with 15 boys and 20 girls

D. a Spanish class with 20 boys and 15 girls

E. a band class with 75 boys and 100 girls

WILL MARK BRAINLIEST!!

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.