Factor problems 13 - 16 by using the perfect squares method. 16. 4x4 – 20x2 + 25

A. (2x2 + 5)(2x2 + 5)
B. (2x2 – 5)(2x2 + 5)
C. (-2x2 – 5)(-2x2 – 5)
D. (2x2 – 5)(2x2 – 5)
E. (2x2 – 5)(-2x2 + 5)
F. This polynomial cannot be factored by using the perfect squares method.
it is not B, A or F

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3