Hope its helpful to you mark me as a brainlist
Answer:
Step-by-step explanation:
Maybe you want to simplify each of these expressions.
2a -1/2a = (2 -1/2)a = (3/2)a
__
3a -1/3a = (3 -1/3)a = (8/3)a
Answer:
14.7%
Step-by-step explanation:
GIVEN: Felicia bought a jackhammer priced at
. The total price, including sales tax, was
.
TO FIND: What was the sales tax percentage.
SOLUTION:
Price of jackhammer 
Total price including sales tax 
Total sales tax on jackhammer 
Total sales tax percentage 
Hence the total sales tax percentage on jackhammer is 14.7%
I think the definition of your sequence is u(n) = 3n - 2 .
That little set of parentheses makes it SO much
easier to read and understand.
To find u(any number) just write the number in place of 'n' .
u(27) = 3(27) - 2
= 81 - 2
= 79 .