Which expression is equivalent to 2n/ n+4 + 7/n-1 if no denominator equals zero?

Which of the binomials below is a factor of this trinominal? x^2-13+30

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²