Suppose vector c = vector a + vector b where vector vector a has components vector a x = 4, vector a y = 2 and vector vector b has components vector b x = -2, vector b y = -5.

(ax, ay) = (4, 2)

(bx, by) = (-2, -5)

c = a + b

c

cx = ax + bx = 4 + (-2) = 2

cy = ay + by = 2 + (-5) = -3

Vector c is (2, -3).

answer: d. $20

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