In science class the ratio to girls to boys is 3 to 7. If their are 50 students in the class, how many boys are there?

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31