K-5+1-5k please I need help

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

What is the prime factorization of 23 ?me with this question

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?