a) What is X?
b) How does weight of rock change over 5 days?
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ǫᴜᴇ ☞︎︎︎ ( A )
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
ǫᴜᴇ ☞︎︎︎ B
Aɴs
It is the fastest way to burn calories and lose fat. Studies suggest that you should exercise 55 minutes, 5 days a week for fitness and health. To lose weight in 5 days, you would have to exercise every single day consistently. Strenuous exercises like running and vigorous biking are two great options available to you.
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