What is the simplified expression for 7 power 4 multiplied by 7 power 6 over 7 power 8? 70
71
72
73

The simplified expression of   is 7² ⇒ C

Step-by-step explanation:

Let us revise some rules of exponent

Let us solve the question

∵ The expression is

→ By using the first rule above add the exponents of 7

∴   =

∴   =

→ By using the second rule above, subtract the exponents of 7

∵   =

∴   = 7²

∴ The simplified expression of   is 7²

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

215.92 dollars is the answer