11. Name three points for each description. a) to the left of (17, 12)
b) to the right of (17, 12)
c) above (17, 12)
d) below (17, 12)

Find the difference (8ab+a+2) - (3ab+6)

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Can you divide 25 into 4 equal groups? explain why or why not.