math help please alg 2 trig?

Question

ok in algebra 2 trig we are learning about percent and rate mixture and distance formaula ( d=rt) well he taught us to do a box and stuff but now ,while doing my hw, im confuse and i dont know what to do.

ok, i dont get about mixture problems, he taught us something with beakers and im confuse. distance formula, i dont get it if two person start at the same poimt but at a different time and rate would the second person catch up to the first person going at a faster rate, later time. hmmm and something about physic in there too.hmm mixture i just dont get, im using "algebra and Trignometry" Fifth edition, by Larson and hostetler, hm pg 105-109

78) A trough is 12 ft. long, 3 ft deep, and 3 feet wide. Find the depth of the water when the trough contain 70 gallon (1 gallon=.13368)

74) A forester mixes gasoline and oild to make 2 gallons of mixture for his two cycle chain saw engine. This mixfture is 32 parts gasoline and 1 part two cycle oild. HOw much gasoline must he added to bring the mixture to 40 parts gasoline and 1 part oilD?

Answer 1

your question is not comprehensive. reframe your question

Answer 2

Okay, add additional details and type exactly what the question is, where ever you are reading it from, do your best to describe any pictures.
If you are in a CPM class you can also check http://hotmath.com for answers.

Answer 3

you basically could multiply the diameter by pi and multiply that by the peak. Then multiply the radius by itself and multiply that by pi. then multiply that by 2. multiply the circumfrence (diameter x pi) by the peak. upload this plus the radius elevated by itself circumstances pi circumstances 2. achieved

Answer 4

So what exactly is your question?