Remove the parentheses: ( a) = a
Find the least common denominator:
Adjust fractions based on the LCD :
Expand :
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hope this helps!
33 rounds to 30 and 89 rounds to 80. 80 x 30= 2400
When you have to estimate a number, it's always best to round them up to simple figures. In this case, 394.6 can be rounded to 400. 9 can be rounded to 10. Therefore, you just divide 400/10, giving you 40