Step-by-step explanation:
2A=h(a+b)
2A=ha+hb
2A-hb=ha
2A-hb/h=a
From what I learnt so far, there are 3 possible ways of finding whether ratios form a proportion
65-39=26 so 26 employess dont have cellular phones. So 26/65 or in simplified form 2/5
D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
