Describe mail-time situations that illustrate each computation, and state the answer in each case. (a) (-78)+(-10) Choose the situation which illustrates the computation. OA. A bill for $78 and a bill for $10 are taken away. OB. You are brought a bill for $78 and a bill for $10. OC. A check for $78 and a check for $10 are taken away. OD. You are brought a check for $78 and a check for $10. State the answer. (-78)+(-10)= (b) (-78)-10 Choose the situation which illustrates the computation. OA. A bill for $78 is taken away and you are brought a bill for $10. OB. A bill for $78 is taken away and you are brought a check for $10. OC. A check for $78 is taken away and you are brought a check for $10. OD. You are brought a bill for $78 and a check for $10 is taken away. State the answer. (-78)-10= (c) 78+10 Choose the situation which illustrates the computation. OA. A check for $78 and a check for $10 are taken away. OB. You are brought a check for $78 and a check for $10. OC. A bill for $78 and a bill for $10 are taken away.