Whose sequence proves triangle abc is congruent to triangle def? why?

preston says the sequence of transformations that maps triangle abc onto triangle def is: rotate it 180 degrees about the origin, and then translate it up 7 units.

chanel says the sequence of transformations that maps triangle abc onto triangle def is: reflect it across the x-axis, then reflect it across the y-axis, and then translate it up 6 units and left 1 unit.

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

What numbers are included in the set of integers? what numbers are not included?