Question: Consider the following expression and determine which statements are true. 7/r + 2³ + 11 Choose 2 answers:

(Choice A) The entire expression is a sum

(Choice B) The coefficient of s a sum

(Choice C) The term of 7/r is a quotient

(Choice D) The term 2³ has a variable

Please help, its due in 20 min and its my last question This is from Khan Academy (Parts of Algebraic Expression)

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate