Question

Can someone help me on number 3

Answer 1

a the first unknown , b the second unknown , and c the third

2/ a = 4/6 = 7 / b = c/12

1) 2/a = 4/ 6
a= 6x2 /4 = 12/4 = 3

2) 4/6= 7/b

b=7*6/4 =10.5


3) 4/6= c/12

c= 12*4/6= 8

Answer 2

under 2 answer is 6 under 7 answer is 9 and above 12 answer is 13