He announced that the US would no longer convert dollars to gold at fixed value
Answer:

Step-by-step explanation:
We want to find

This can be rewritten as;


Recall that; 

We evaluate now to obtain;

Answer:
1:7
Step-by-step explanation:
One day out of the week (1/7)
If she burned the same number of calories every day, this should be the answer.
Answer:
Step-by-stepidf explanation:
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Answer: 20
let the number be x
1/4 x = 5
x=5*4
x=20