What amount of a 40% acid solution must be mixed with 200 mL 10% solution to produce a 20% solution?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?