Answer:

Step-by-step explanation:
I supposed that is a "n".
Steps as below:

Answer:
Yes
Step-by-step explanation:
Answer:
5b +30
Step-by-step explanation:
5 · 6 = 30
5 · b = 5b
Answer:
b. what percentage of the gas stations in Russia charge less than $3,50 per gallon im not sure though
Step-by-step explanation: