A 6 3/4 inch candle burns down in 9 hours. How far has it burned in 5 1/2 hours? Use the drop down menu to state your answer as a decimal, mixed number, or improper fraction. Please help me!

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Ineed on this question me get the answer