question a is 80
question b 20 (is what I could find but not completely sure)
because its isosceles so 9+9=x²
and x equal
2√3
3x - 10 + x = 90
4x = 100
x = 25 degrees
She should invest $6491.73.
The equation we use to solve this is in the form

,
where A is the total amount in the account, p is the principal invested, r is the interest rate as a decimal, n is the number of times per year the interest is compounded, and t is the amount of time.
A in our problem is 14000.
p is unknown.
r is 6% = 6/100 = 0.06.
n is 2, since it is compounded semiannually.
t is 13.
Answer:
well, they all give you answers as fractions,
A.=1/9
B.=1/64
C.=1/64
Step-by-step explanation: