Please help me!! i hate math so much

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Felix wrote several equations and determined that only one of the equations has no solution. which of these equations has no solution?

Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1