What is the equation of the line perpendicular to 2x − 7y = −42 that contains the point (6, −3)?

The questions are on the attached image

Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys