Multi-step: glen finds the sum of (3 3/10 + 4 1/3) + 2 1/2 and ana finds the sum of (4 1/3 + 3 3/10) + 2 1/10. what is the total sum if their answers?

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle