Find the sum of −7 and the opposite 4 + 2.

-13

Step-by-step explanation: What you would do is you would take 4+2 and you'll get 6 and the opposite of that is -6 and then you would add -7+ -6 to get -13

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

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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