No guessing . which of the following are mathematical sentences? check all that apply. a.33 b. x = 0 c.4g = 8 d.3x e. r + 6 = 3 f.7r = 14

△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 .

Using elimination, what is -4x+2y=-12 4x+8y=-24

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?