Which set of side lengths form a right triangle?
a.7 cm, 8 cm, 10 cm
b.15 m, 20 m, 25 m
c.10 in., 41 in., 40 in.
d.3 ft, 6 ft, 5 ft
i was thinking c but i searched up and it said 91 are obtuse & not right angle so im confused

Explain how you can use the associative property to evaluate (7x50)x4.

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.