Astudent solved an equation and got the answer 3=9 how many solutions dose the equation have?

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.)

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.