If 28% of a sum is $100.80, what is the sum? a. $282.24 b. $129.02 c. $277.78 d. $360.00

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

True or false? a circle could be circumscribed about the quadrilateral below.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0