Question

a
$a {2} + 8ab + 16b{2} - 9b{2} + 42bc - 49c{2}$
​

Answer 1

Answer:

Answer:

4:5:3

Step-by-step explanation:

0.6 kg : 3/4 kg : 400g

now

, convert them into gram,

so,

0.6kg = 0.6*1000= 600 g

3/4 kg = 3/4*1000 = 750 g

400g

then ,

        600 : 750 : 400

= 60 : 75 : 40           .............................all numbers div by 10

= 12 : 15 : 9               ..............................all numbers div by 5

= 4 : 5 : 3                 ...............................all numbers div by 3 .

hope you get answer