What is the value of 1/1^2 + 1/2^2+ 1/3^2 + 1/4^2 + and so on ​

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

Divide. write in the simplest form. 4 1/6 divided by 10

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3