No it isn't because it wasn't an expression. An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide)
Answer:
160 Quarters
Step-by-step explanation:
There are 4 quarters in a dollar, and we know that there are 40 dollars. Multiply 40 by 4 to get 160
<u>Hope this helps :-)</u>
The rise or an increase in altitude is represented by positive sign and a decend or decrease in altitude is represented by negative sign.
First the helicopter descended 1200 feet. So the change in altitude will be -1200 feet.
Then the helicopter rose by 800 feet. So the change in altitude will be 800 feet.
Finally the helicopter descended by 450 feet. So the change in altitude will be -450 feet.
The net change in altitude will be the sum of all the above 3 changes.
Change in altitude = -1200 + 800 - 450 = -850 feet
The negative sign indicates a descend i.e. loss in altitude. So the net change in altitude was a loss of 850 feet.
1280, -2560, 5120
Multiply the preceding term by -2 and
No, she will still owe $9.30. $25.63 - $16.33= $9.30
