21. in your day-to-day routines, you use proportions and ratios when cooking and cleaning. how do you imagine that you will use proportions and ratios in your healthcare career?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Each year a store decreased the price of a certain model of tv by $35 . if the price in 2001 was $1950 , what was the price in 2009