Find sin2a if sina=3/5 and a is in quadrant 2

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks