B=3/4a
A+b= 21
Solve for a and b...
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You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account
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The high temp today was 62Β°. when nighttime comes, the temp will drop 40Β°. by 4am the temp will drop an additional 40Β°. what is the temp at 4am?
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