What is 3.9/5.9 reduced to its lowest form

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Find the domain of the following expression: 1/(√x)-2

Which of the following is an equation of a line parallel to the equation y=4x+1?