Simplify each expression.

–4 + 10a – 5 – a

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm

Find the solution to this system 2,1 1,-2 1,2 -1,2

Which equation can be simplified to find the inverse of y = 2x2^2