(07.02 LC) Ash recycles 7 plastic bottles every week. Which expression shows the total number of plastic bottles he recycles in w weeks? (1 point)
w over 7
7w
7 + w
7 + 7w

The triangles are similar. what is the value of x? show your work.

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

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.