Question

I have to go to sleep! I don't understand much about math! If someone could help me I would be very grateful.

Answer 1

Box 1 question 1: 3:2.5

Box 2 question 2 : 3:5

Explanation:

Q3.15:25

45:75

Q8. 0.5×6×11=33(old triangle )

0.5×12×11=66

66/33=2

The area became doubled.

Q9. 9×8=72(old)

27×8=216

216/72=3

The area became three times

Q10. pie×12×12:pie×32×32