May be you can use the quadratic equation formular.
Seven hundred twelve thousandths turns into 0.712.
Let the amount that the boys sold be x, the amount that girls sold will be 3x. The total will be given by:
x+3x=180
4x=180
solving for x we get:
x=180/4
x=45
Thus, boys sold $45, the girls provided 45*3=$135
Answer:
32.064
Step-by-step explanation: