$12.6 -- 25% of 12.6 is exactly $3.15
I did this by taking 3.15 / 0.25
The answer is B. 7 times a number plus 4 would be 7n +4.
The answer is 2 19/50.
First of all you have to convert the mixed numbers into improper fractions. So, 1 2/5 is equal to 7/5 and 1 7/10 is equal to 17/10. Next you multiply the denominators by the denominators and multiply the numerator by the numerator. 7 times 17 is 119 and 5 times 10 is 50. So the fraction is 119/50. You convert the improper fraction into a mixed number, which is 2 19/50.
Asking the Math Gods...
550*.082+550=$595.10
$45.10 in tax
