Answer:
4 x 10^8
Step-by-step explanation:
0.0001 x 4,000,000,000,000 = 400,000,000
400,000,000 = 4 x 10^8
Answer:

The weight of a cubic foot of stone is 5/16 the weight of a cubic foot of iron.
Answer:
15x-7
Step-by-step explanation:


Answer:
x= -1/3
Step-by-step explanation:
You take out 2 by multiplying 2/1 in both sides
then u have 4-3x=5
You subtract 4 from 5 and you have
-3x=1
divide and the answer is x= -1/3