Factor-71*2182 + 3x-9 by grouping. What is the resulting expression? ) O (3-7x) (x²-3) O (7-3) (3 + 2 O (3-7x²)(x-3) O (7x² - 3)(3 + x)​

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.