Someone plzz help me

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?

Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.