Can someone me with this pre-calc question ! verify the identity. cot x minus pi divided by two. = -tan x

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

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.

Select the correct statement about the function represented by the table