Afarmer has 100 gallons of a solution that is 70% disinfectant. he wishes to mix it with a solution that is 90% disinfectant to make a 75% disinfectant solution. how much of the 90% disinfectant solution must he use?

On the april 3 billing date, michaelle chappell had a balance due of $ 1495.39 on her credit card. from april 3 through may 2, michaelle charged an additional $ 305.34 and made a payment of $ 800.a) find the finance charge on may 3, using the previous balance method. assume that the interest rate is 1.8 % per month.b) find the new balance on may 3.

Jonah runs 3/5 miles on sunday and 7/10 mile on monday. he uses the model to find that he can ran a total of 1 mile . what mistake does jonah make

What is the order of magnitude for the number of liters in a large bottle of soda served at a party