Write an expression that can be used to solve the problem. . during practice, it took shawn 27 min to swim 81 laps. if shawn swam at a constant rate, how long did it take him to complete each lap? . a.27*81. . b.27+81. . c.81/27. . d.27/81.

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

I'm confused on this could anyone me and show me what i need to do to solve it.

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer