To find solutions of equations should we look for x-intercepts or y-intercepts in a graph

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

Anyone know? will mark brainliest if correct!

Which expression converts 45 degree to radians