Answer:
600
Step-by-step explanation:
mutiply all 6x4x5x5
1st do 5x5=25 no you have 6x4x25
2nd do 6x4= 24 now you have 24x25
and that equal 600!
Hope this help you
enjoy your day
I think it is 106
since triangles are similar
=》 21/9 = x/3
=》 x = 21×3/9 =7
