The simple interest equation is I = Prt, where I is the interest earned, P is the principal investment, and t is the
amount of time (in years).
Use the formula to solve the problem: If a $5,000 investment
earns $1,575 interest over 18 years, what is the annual interest
rate?
r =
% (enter your answer as a percent and do not round)

What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Find the quotient with the restriction.