In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every incorrect answer. If he attempts all 75 questions and secures 125 marks, what are the number of questions he
attempted correctly?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

The graph of a curve that passes the vertical line test is a: