Triangle ABC has coordinates All 4,1), B(-3,2), and C(2, 1), The triangle is rotated about the origin and has image coordinates A' (1,4), B (2,3), and C'(1, 2),
What is the angle and direction of rotation?
Plzz need help.

The probability brenda will recieve a telemarketing call is 15%. if she gets 20 calls a day, how many can she expect to be telemarketing calls ?

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin

What is the solution for the system of equations below? y=3/4x-12 and y=-4x-31. a: (-4,-15). b: (-4,-12). c: (4,-9). d: (4,-47)