380 is 40% of which number

△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 .

Ill mark the brainliest if you me with the these three questions 7,8,9

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4