Answer:
a
Step-by-step explanation:
you can split nine into three
Answer:
see explanation
Step-by-step explanation:
These are the terms of an arithmetic sequence with n th term
= a + (n - 1)d
where a is the first term and d the common difference
d = 25 - 20 = 30 - 25 = 5 and a = 20, hence
= 20 + 5(n - 1) = 20 + 5n - 5 = 5n + 15 ← n th term formula
<span>A letter that holds the place for some unknown value in mathematics
VARIABLE
A process where you must look for terms that have identical variable parts and then combine their coefficients.
COMBINING LIKE TERMS</span>
