Eli shows that triangle A is congruent to triangle B by rotating triangle A around point K and then translating it so it matches up with triangle B exactly. Which conclusion can be drawn from Eli's transformations?

Which of the following contains a variable?

The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid

The price of a visit to the dentist is \$50$50. if the dentist fills any cavities, an additional charge of \$100$100 per cavity gets added to the bill. if the dentist finds nn cavities, what will the cost of the visit be?