Polygon abcd is rotated 90° counterclockwise about the origin to create polygon a'b'c'd'. match each set of coordinates to the vertices of polygon a'b'c'd

a'
b'
c'
d'

(-1,3)
(-2,2)
(-2,1)
(-1,1)

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

∆red ≅ ∆ by rule will give brainiest if possible

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.