Martha paid $42.20 for her sisters birthday present. this included 6% sales tax. what was the cost of the gift before tax

Which expressions are equivalent to -6 + 3m

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative