The middle school band has a boy to girl ratio of 4:6. The band had 20 members last year and 25 members this year How many girls and how many boys are in the band in each of these two years? Last year. 8 boys and 12 girls. This year 10 boys and 15 girls. Last year. 12 boys and 8 girls. This year 13 boys and 12 girls. Last year: 8 boys and 12 girls. This year 12 boys and 13 girls. Last year 12 boys and girls. This year 15 boys and 10 girls

Last year 8 boys and 12 girls

This year 10 boys 15 girls

Step-by-step explanation:

8/4=2=12/6

10/4=2.5=15/6

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!