Maggie has been collecting nickels and dimes for 2 weeks, and she has a total of $5.15. If she has 7 more nickels than she has dimes, how many of each coin does she have?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x