Calculate the annual simple interest rate as a percent. A sum of money will be tripled in 25 years at the rate of __% per annum.

Step-by-step explanation:

Let x be the principal amount.

Simple Interest Formula:

where a = final amount

p = principal amount

r = annual interest rate

t = time taken in years.

given a = 3x, p = x, t = 25, substitute a,p and t into formula.

8%*

correct

step-by-step explanation:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: