What is the common ratio of the sequence? -2, 6, -18, a) −3 b) −2 c) 3 d) 8 99 points !

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?