Slope for (-3,-3) and (-5, -2)

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.