What should be subtracted from -5/4 to get -1? (i) -1/4 (ii) 1⁄4 (iii) 1 (iv) -3/4

Answer this question, only if you know the answer. 30 points and brainliest!

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?