Give an indirect proof of the following statement if x^2 + x = 4, then x ≠ 2. : )

Need on this geometry question. explain how you did it.

What is the absolute value of the complex number -4-sqrt2i

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.