Respuesta :
Answer:
28 boys
Step-by-step explanation:
For every 7 boys there are, there are 20 girls. It is given to us that there are 80 girls. To solve, divide 80 with 20:
80/20 = 4
Next, multiply 4 with 7:
4 x 7 = 28
There are 28 boys at the school dance.