What is the value of the expression? -9/16 + 9/8

The expression isn’t really my problem, it’s more as the graph thing shown in the picture. I have to like do something with it in which I have no clue what to do. Please help! Anyone with correct way to help me will get brainliest and a lot of points, if you aren’t sure please don’t ask, it only let’s me check it once.

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

Calculate the annual effective interest rate of a 12 % nominal annual interest rate compound monthly