What is the ratio of the number of red marbles to the total number of marbles expressed in simplest terms?

Answer this question, only if you know the answer. 30 points and brainliest!

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?