Answer:
3
Step-by-step explanation:
Answer:
y=6x+21
Step-by-step explanation:
simply 3x2+6x+15
Answer:
x(1.05)+4.00
Step-by-step explanation:
He bought x pens for 1.05 each and you have to add the $4 shipping fee to it
Hope this Helps
Answer:
8k+11
Step-by-step explanation:
Combine like terms
9k-k
7+4
9k-k=8k
7+4=11
8k+11