Morgan is adding -12 +7. She writes the following -12 +7 = ?
She wants to write – 12 as the sum of two integers so that the sum of one of the integers and 7 is equal to 0. How could morgan write -12 to complete this problem? Enter the integers in the box

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.