Christine earns 41 dollars per week working part-time at a book store. s), that Christine earns She makes one dollar more for ea
ch book that she sells. The amount, A (in dollar in a week if she sells B books is given by the following. How much does Christine earn in a week he sells 25 books?
Q=(c+d)/2 Multiply both sides by 2 to get rid of the 2 2×q=(c+d) Subtract c from both sides to get rid of the c 2×q-c=d Flip the equation around d=2×q-c
