Hi so if you start at 1.60 and go up by 60% you first look at what 10% of 1.60 is wich is 0.16 then do 0.16 * 6 = 0.96 then do 1.60 + 0.96 = 2.56 then go down by 20% so 10 % is 0.16 and then 20% is 0.32 so then do 2.56 - 0.32 = 2.24 i really have to go now so if you can do the tax part yourself then that would be great!
Yes, you're right! The first step is rewriting the equation as
Subtract 
from both sides:
Use the property 
to rewrite the equation as
Divide both sides by 
Alternative strategy:
Consider both sides as exponents of e:
Use 
to write
Divide both sides by a:
Consider the logarithm base b of both sides:
The two numbers are the same: you can check it using the rule for changing the base of logarithms
Answer:
9
Step-by-step explanation:
This is a right triangle. We can use the Pythagorean theorem to determine the missing side.
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
a^2 + 12 ^2 = 15^2
a^2 +144 =225
a^2 = 225-144
a^2 = 81
Taking the square root of each side
a = 9
I know that the answer for number 10 is the first option
