Mason needs 9 more seed packets to have a total of 20 plants in his yard.
Simplified:
20-11=9
Answer:
28j + 21
Step-by-step explanation:
combine like terms
7(2j+ 3+ 2j)
7(4j+3)
Distribute
7(4j + 3)
=
a(1)= -3
a(n)=a(n-1) (-3)
hope this helps