54 degrees because the angles are equal
The answer will be start fraction pi over 2 end fraction
If $26 represents the cost of the 5 used CDs, than your formula would be "26+4x" ,x being the amount of extra CDs you purchase.
The number CDs minus 5 is our x value, because the first 5 are the used CDs bundled into the $26 group.
26+4(6-5)
26+4(1)
26+4
30
6 CDs would cost $30
A(n)=-1(-3^n)
3, -9, 27, -81
