Can someone tell me what is 29% as an decimal

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

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