It looks like you had some of the numbers correct, but you just labeled it and rounded it incorrectly, and the teacher gave you super partial credit for it.
For my work, I'm assuming that side A is opposite of angle A and side B is opposite of angle B, etc...
Y = (5.2)^x is exponential growth. The exponential equation is y = a * b^x If b > 1 then the function is exponential growth. If 0 < b < 1 then the function is exponential decay.
