Simplify 5/6 divided by 4/9

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

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180