Marlene is buying clothes online. she can pay one fee for the shipping of $8, and can get shirts on sale for $12 each. if her total was $104, how many shirts did she buy

△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 .

Which of the following is not a subset of {1,2,3}?

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /