If Bobby drives North 5mi then West 8mi, East 2mi, North 3mi, and South 4mi: a. What is the total displacement?

b. What is his final position on X-Y graph?

[Ex. Answer (-2,3)]

pls help im desperate :')

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.