ASAP PLASE HELP AND SHOW WORK Each choice below describes the lengths of the sides of a triangle. Select all the triangles that must be right triangles.

Triangle a- √3,√4,√5

Triangle b- 3,4,5

triangle c- 2,4,6

Triangle d- √2,√4√6

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

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

Prove that quadrilateral is a rhombus.