Question

pls pls pls va rog 10 ajutor!!!!!!!​

Answer 1

M.a.(a,b,c) = (a + b + c)/3 = 14 => a + b+ c = 14 * 3 = 42

M.a.(a,b,c,d) = (a+b+c+d)/4 = (42 + 22)/4 = 64/4 = 16