Simplify (10x³)^4

please hurry

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

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.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .