Guys can you please help me this is my last assignment before thanksgiving break and my cousin who I haven’t seen in 3 years is coming and I don’t want to spend the time I have doing homework

5. $1417.50, 6. $18.13, 7. $.78 (assuming the interest rate is annual), 8. .0625%, 9a. 5%, b. No because If he invests $4200 at 6% for 3 years he will have earned $756, so $4200+$756= $4956

Step-by-step explanation:

Have fun with your cousin

i dont know men

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places