plz see the attachment

Ren Consider f and g, two integrable functions such that f(x) de = 2 and / g(x) di = -1. Find the value of each of the following integrals. a) (f(x) - g(z) de = Number b) (2f(x ) + 6g(z)) da = Number c) ( f(2 ) - 2 ) do = Number