Alicia was rock climbing. she climbed to a height of 30 ft. next , she climbed down 18 ft. finally she climbed up another 55 ft. write an addition expression to describe this situation then find the sum of your addition expression to determine alicia's elevation.

Step-by-step explanation:

Alicia was rock climbing. She climbed to a height of 30 ft. Next , she climbed down 18 ft. Finally she climbed up another 55 ft. Write an addition expression to describe this situation then find the sum of your addition expression to determine Alicia's elevation.

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step-by-step explanation:

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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