Answer:
5:6
Step-by-step explanation:
20/4=5
24/4=6
20:24 ratio simplified is 5:6
sorry if wrong
X^-n duals: 1/x^n. You cannot have negative exponents so do its inverse to get rid of the negative exponent
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.