Answer:
a) 198.7% interest
Not too sure about answer to (b)
b) 4.75% annualized
Step-by-step explanation:
a) i used Interest = Principal x Rate x Time
40 = 525 x
x r
40 = 20.13r
r = 1.987 or 198.7%
b) i used this proportion:
=
'x' represents annualized rate
1/24 represents 2 weeks out of a year
1/24x = 1.98
x = 4.75%
ANSWER

EXPLANATION
The given equation is

Recall that

Apply this rule on the right hand side to get,

Express both sides to base 3.

Equate the exponents:
3(1-x)=2(-2x)
Expand:

Group like terms,


Answer:
36x
Step-by-step explanation:
add all the numbers together then add x at the end
Answer:
it is 19
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Circumference = Pi * radius^2
The radius is half of the diameter, 23.