4.5m is ___% of 90cm; 90cm is ___% of 4.5m Please help, 4.5 is not 5% of 90 cm i'll give brainliest

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

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)