Heber pays $40 each month to stream Disney+ on one device. To stream Disney+ on multiple devices Heber must pay an additional $15 per device.

If for one month, Heber's bill was $115, on how many additional devices did Heber stream Disney+?
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Place the following steps in order to complete the square and solve the quadratic equation,

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Of to(3, 4) (2,1) (3,7) (5,2) (5,-2) (3, 3) (-2, 3) (1,2) (-4,-2) (-3, 1) (4, -1) (-1, 1) 10 v 29