Unit 6 Pre-Test (Practice grade)

 $Evaluate\ the\ following\ \frac{4^{-4}p^0}{w^{-5}}$  

•  $\frac{w^5}{256}$  

•  $\frac{w^5}{4^4}$  

•  $\frac{w^5p}{4^4}$  

•  $\frac{w^5p}{256}$  

 $Simplify\ the\ following\ \frac{4^{-4}p^0}{w^{-5}}$  

•  $\frac{w^5}{256}$  

•  $\frac{w^5}{4^4}$  

•  $\frac{w^5p}{4^4}$  

•  $\frac{w^5p}{256}$  

 $\left(\frac{1}{4a^5}\right)^{-8}$  Evaluate the expression

•  $65,536a^{40}$  

•  $\frac{4^8a^{40}}{1^8}$  

•  $4^8a^{40}$  

•  $16384a^{40}$  

 $-\sqrt{216\ }$  Rewrite the cubed root as a rational exponent

•  $-\left(216\right)^{\frac{1}{3}}$  

•  $-\left(216\right)^{\frac{1}{2}}$  

•  $\left(-216\right)^{\frac{1}{3}}$  

•  $-\left(216\right)^{\frac{1}{4}}$  

 $343^{\frac{5}{3}}$  Evaluate

• 16,807

• 35

• 92.6

• 2401

 $7^x=\frac{1}{2401}$  Solve for x

• 4

• -4

• 7

•  $\frac{1}{7^4}$  

Michael De Silva's "My Little Pony" Twitch steam earns $500 monthly. He puts that money into an account that earns 7% compounded annually.

Write a function that represents the balance after "t" years.

• $y\ =\ 500\left(1.07\right)^t$

• $y=500\left(.07\right)^t$

• $y=500\left(1.07^{\left(t\right)}\right)$

• $y=1.07\left(500\right)^t$

Michael De Silva's "My Little Pony" Twitch steam earns $500 monthly. He puts that money into an account that earns 7% compounded annually.

How much will he make after two years?

• $572.45

• $500.45

• $472.45

• $572.00

Your parents bet that if you end the semester with an "A" in Sir Larry's class AND score a "5" on the EOC, they'll buy you a car on your 15th birthday.

You did both

The car cost $7000 and its value decreases by 12% annually.

You're so happy, you decided to write a function :)

• $y=7000\left(.88\right)^t$

• $y=7000\left(-1.88\right)^t$

• $y=7000\left(-.12\right)^t$

• $y=7000\left(.12\right)^t$

Your parents bet that if you end the semester with an "A" in Sir Larry's class AND score a "5" on the EOC, they'll buy you a car on your 15th birthday. You did both!!

The car costs $7000 and decreases in value by 12% annually.

How much is the car worth after 2.5 years?
(Write function, then solve)

• $5085.16

• $4085.16

• $5090

• $5095.55