Eleven fifteenths changed into a decimal

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

The first term of a sequence is -12. the recursive formula for the sequence is an = an-1 + 9. what are the next 3 terms in the sequence? a) -3, -15, -27 b) -3, 6, 15 c) -3, -6, -3 d) -3, -6, 3

Using the rise/run counting method, the slope of the line is