Answer:

Step-by-step explanation:
Let w be weight of emu egg in pounds.
We have been given that an ostrich egg weighs 2.9 pounds.The difference between the weight of this egg and the weight of an emu egg is 1.6 pounds.
We can represent this information as:

Therefore, the equation
will give us the weight of the emu egg, w, in pounds.
1 is the magnitude of this question bro because it is process
Answer:
b
Step-by-step explanation:
Answer:
47.5%
Step-by-step explanation:
You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.
Now multiply this by 100.
You can easily move the decimal point to the right.
So you would get 47.5%
Hope this helped!