Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (EMERGENCY)

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?

At the start of 2014 lucys house was worth ? 200 000. the value of the house increased by 5% every year. workout the value of her house at the start of 2017