Which shows the best use of the associative and commutative properties to make simplifying 2/5 - 15+8 - + 3 easier?
A. [3+ 2/5} + (-15)] + [(-5) + 8]
B. [2/5 +8+(-15)] + [3+(-3)]
C. [2/5 +(-15)] + [8+(-3) + 3]
D. [2/5 +(-3)] + [8 +3+(-15)]

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

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

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?