Is 8/5 proportional to 24/15 ?

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

Which of the following circles have their centers in the third quadrant? check all that apply.

Measure a and b and find their sum. how are the angles related?