Find m and n if (x+2) and (x+1) are the factors of x^3 + 3x^2 - 2mx + n (frm polynomials chapter)

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Asap! i'm not good math and i'm lost.