An elevator goes up 7 floors and then down 4 floors. What integer represents the change in the floor level?

△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 .

If you answer 2+2 you will get over 80 points

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers