If n arthimetic means are inserted between 6.2 and 19.4, the sum of the resulting term is 76.8 find 'n'

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before