The coordinates of the vertices of triangles are listed in the options below. which is a right triangle?

d(−2, −3), e(−5, −7), f(6, −7)
a(−3, 2), b(−4, −9), c(8, 1)
p(−6, 2), q(1, 0), r(−3, −2)
x(3, 1), y(−4, −3), z(−8, 3)

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

How do i take any fraction and make it into a decimal or percentage?

Which of the following is a cost homeowners insurance does not protect? a. the cost of repair or replacement of a home lost in a natural disaster. b. additional living expenses required while your home is repaired after a disaster. c. replacement costs for all contents in your home, including high cost electronics. d. the cost of medical expenses incurred by somebody getting injured on your property. select the best answer from the choices provided