The dashed triangle is a dilation image of the solid triangle with the center at the origin. is the dilation an enlargement or a reduction? find the scale factor of the dilation.

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Can you me find the missing length. i attached an image.