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?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Which of the following is true for the relation f(x)=2x^2+1

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?