1. which of the following is an example of an open equation? a. 5x + 7 = 12 b. 12 + (-8) = 4 c. 25 =5(5) d. 8 + 0 = 8 2. which of the following equation has 3 as a solution? a. -2b =6 b. 4a - 5 = 12 c. 5y =y +8 d. z - 15 = -12

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?

Find the zeros of each function. f(x) = x^2 + 5x - 6

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y