This one is confusing to me

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 remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

If g(x) is an odd function, which function must be an even function?