3/5÷1/4 please helplp

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?