Solve the system of equations below by elimination. -2x-4y=-4 -x+7y=-20

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set