If the nank took 45.25 out of you account by accident they owe you that amount 45.25
About one standard ruler is the ESTIMATED length of a piece of paper.
Answer:

Step-by-step explanation:
I'm going to write it so I can see it better:

You can use the difference of squares formula:

Answer:
294 square units
Step-by-step explanation:
35^2-21^2=a^2
a^2=784
square root 784=28
21*28/2=294
Answer=294
I estimated it is around or near 360