Glen buys four tickets for a concert. Each ticket costs £54 Glen also has to pay a booking fee. The booking fee is 5% of the total price of the tickets.
Work out the total amount Glen has to pay. Povinná odpověď. Jednořádkový text.

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I’m really confused and need to learn this

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?

What is the domain of a function? a.) the set of all points on the function b.) the set of all first elements of the function c.) the set of all second elements of the function