How can you use rates to determine whether a situation is proportional relationships?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d