The original volume of the shape was 250. You come up with this by multiplying all sides together. So, 5x5x10=250.
We do the same for the new shape, which now has a 7 in place of the 5. So 7x7x10=490.
Lastly, we subtract the volume of the new shape from the volume of the old shape to see the difference. So, 490-250=240.
So the answer to this is 240.
Answer: $10272.17
Step-by-step explanation: Please see attachment for explanation
The cost of each friend's meal in terms of a is 35/a.
The cost of each friend's meal when the number of friends is 5 is $7.
Answer:
6 weeks
Step-by-step explanation:
So the amount b we will have in our account w weeks from now is given by the equation:

To find out after how many weeks from now we will have $210, substitute 210 for b and solve for w:

Subtract 85 from both sides:

Add within the parentheses:

Divide both sides by 22:

In other words, we will have $210 after approximately 6 weeks.