Which is an example of an expression? 7 + d = 56

x - 6 = 23

6n = 34

c + 8

I need an explanation of this and I will mark brainliest

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

What is coefficient of the term of degree of degree 5 in the polynomial below