Gabe is mapping out important family events. He uses negative numbers to represent a time before he was born and positive numbers to represent the time after he was born. For example, Gabe's mom was given a special coin in a year −20minus, 20, and Gabe's sister was born in year 5.

What does year 0 represent?

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

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.

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.