Rise/Run=2/4= 1/2, the answer would be 1/2.
76 degrees. Angle y is supplementary to angle “2x+20”.
Ratio is 5girls:7boys with total 72 students
5+7= 12
72➗12= 6
6(5:7)= 30 girls : 42 boys
New ratio is 3:4 with 48 boys
48➗4= 12
So for girls 3x12= 36
So started with 30 girls ended with 36 girls... 6 girls joined band during the school year.
SOS:
Answer:
Take the square root of 36 and subtract 2.
Step-by-step explanation:

<em>Hope this helps!!</em>