Afarmer has 100 gallons of 70% pure disinfectant. he wishes to mix it with disinfectant which is 90% pure in order to obtain 75% pure disinfectant. how much of the 90% pure disinfectant must he use?

Venus is about 108 kilometers from the sun. saturn is about 109 kilometers from the sun. about how many times farther from the sun is saturn than venus?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Can someone me with these two circle theorem questions asap?