In how many different ways can up to 4 students be selected from 6 girls and 7 boys if each selection must have an equal number of girls and boys?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?