Plz join this discord server I need a few more invites to get a reward it's in the comments make sure to take out the spaces for it to workdon't lie that you joined

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

Somone me i want to know what 18 hours out of 24 hours in a fraction

Asap! i'm not good math and i'm lost.