Answer:
I'm not sure what type of equations you are looking for but these are the most basic ones.
Step-by-step explanation:
Hope this helps! if you have any questions ask me in the comments.
I do not understand but if you deposit 85 dollars in a bank account it will most likely be positive unless you owe the bank money.
Hope I helped
Brainliest if satisfied
Answer:
15 installments
Step-by-step explanation:
3900 = Σ 
400 - 20*(n - 1)
Answer:
= - 1.5n - 6
Step-by-step explanation:
Given that the sequence is arithmetic with n th term ( explicit formula
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 7.5 and d = - 9 - (- 7.5) = - 9 + 7.5 = - 1.5
= - 7.5 - 1.5(n - 1) = - 7.5 - 1.5n + 1.5 = - 1.5n - 6
Step-by-step explanation:
Answer:
I am pretty sure its the first one
