Through research, scientists found that the body of a 200 lb person consists of 3.2 x 10^-5 lbs of zinc. In the bodies of 1,500 such people, how much zinc is present?

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

Given that abcd is a rhombus, what is the value of x?

What is the value of f(x) = 2.2 for f(-2)?