Please help with these questions

Answer:
1- 10,800
2- 400
Step-by-step explanation:
1- Multiply 450 by 24
2- Divide 640 by 1.6
Answer:
24lb = 10 800g
640km = 400mi
Step-by-step explanation:
450g = 1lb
x = 24lb
x = 450 × 24
x = 10 800g
(we use cross multiplication btw)
1.6km = 1mi
640km = x
1.6x = 640 x 1
1.6/1.6 = 640/1.6
x = 400mi