The expression 2( 21x + 75 ) represents the monthly tuition and the one-time materials fee that Jamie pays for his two children to join a science club. What do each of the following present, in context, for the above expression
2 represents the two kids, he is paying double the amount because two kids are enrolled. The 21 is the monthy charge and x is the number of months in class which 21x is the slope. 75 is a one time fee and is the y intercept.
