What is 51 x 164 my calculator wont work

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

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