The difference of the square of a number and 40 is equal to 3 times that number. Find the positive solution.

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

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

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)