Please help! The table shows that the ratio of boys to girls at Midtown Middle School is 3 to 4.

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

a math class with 12 boys and 16 girls
an English class with 14 boys and 14 girls
a science class with 15 boys and 20 girls
a Spanish class with 20 boys and 15 girls
a band class with 75 boys and 100 girls