A sporting goods store pays its wholesaler $50 for a certain baseball glove and then sells the glove to customers at a retail value of $90. What is the markup rate?

Which of the following statement about pascal's triangle are true?

Consider the first four terms of the sequence below. what is the 8th term of this sequence?

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?