[2*(10 + 5)] - 5
[2*(15)] - 5
[2(15)] - 5
[30] - 5
25
64.79 is your answer. i got the sales tax calculator. Hope his helps
When rounding always look at the number after the decimal . Anything 5 & up is rounded to the next number and anything below 5 is rounded down .
1. -3x-5=16 (add 5 to both sides)
-3x=21 (divide by -3)
x=-7
