4. molly had $21 to spend on two notebooks. after buying them he had $13. how much did each notebook cost?

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Which expression is equivalent to -5(3x - 6/7)