Louis and Kira are 700 feet apart when they start biking str…

Louis and Kira are 700 feet apart when they start biking straight toward one another at the same time. Louis rides twice as fast as Kira. Let  represent the distance (in feet) that Kira has biked since they started traveling toward each other. a) Draw a diagram that represents this situation with Louis and Kira, being sure to label all relevant quantities.b) Which quantities in the scenario are fixed and which quantities are varying?c) Write a formula that expresses the distance  between Louis and Kira (in feet) in terms of .

A piggy bank starts the new year with $0 in it and experienc…

A piggy bank starts the new year with $0 in it and experiences a deposit of $14 after the end of each month that year. Is the relationship between the number of months elapsed and the number of dollars inside the piggy bank a proportional relationship?  Be sure to explain your reasoning.  

A population of 700 moose is released in a wildlife preserve…

A population of 700 moose is released in a wildlife preserve. Each year, the population grows by 6.4%. Let  stand for the number of years since the release, and let  stand for the moose population. a) Using the given information, write a formula that defines in terms of .b) Use the formula from (a) to determine how many moose there are after 7 years. Show your work.