At New City High School, 11 out of 20 high school seniors have a part-time job. This ratio is the same at Oldville High School, which has 480 seniors. How many seniors at Oldville High School have a part-time job?

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

How do you find principle and simple interest

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000