The total cost of the camera is $268.26
A down payment of $12 was paid so he now owes $256.26
Every 6 months Emil has to pay:
256.26 / 6 = 42.71
Therefore, each moth, Emil has to pay $42.71
Question 1
The answer is last one. Y would equal 7+24 not 7-24.
The answer is 0.36. I don't think u need to explain why, right ;)