It's C and A since .2 times 30 is 6 and 1/5 is also .2
F(x) = -5x - 4
g(x) = 6x - 7
f(x) + g(x) = (-5x-4) + (6x-7)
f(x) + g(x) = x - 11
If you need 150g of flour for 12 cakes, that means you need 12.5 g of flour per cake. So if you multiply that by 30 it gives you
375g of flour
Step-by-step explanation:
Union = elements of A + elements of B
Union = ( 1,6,7,9,12)