Answer:
49π
Step-by-step explanation:
πr^2
π*7^2
49π
Answer: x=21
Step-by-step explanation:
To solve for x you must first combine you like terms on each side of the equal sign. So you problem will become 8x+1=22+7x. Then get your x on one side and your numbers on the other by taking the one away from the right side and 1 away from 22. Then take away 7 from the left side to cancel it out. Then take 7x away from 8x to leave you with x. making your answer x=21
Answer:

Step-by-step explanation:

reduced
transformed the expression to make it easier
add
reduce
Answer:
Beatz on demand
Step-by-step explanation:
Even though it starts at 25 for the fee it has a lower monthly rate cost then itunes. While iTunes charges 8.99 per month Beatz on demand only charges 5.99 a month