PLEASE HELP !! i suck at math

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Solve for x. −3/4(x+2)=6 enter your answer in the box

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!