4). Write" 4 less than the product of a number and 5" and algebraic expression Help

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

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?