hurst1891 hurst1891 11-10-2022 Mathematics Answered -4+ (4.5+7). Part A Which expression is equivalent to the expression -4+ (4.5+7)? OA -8.5+7 OB. -11+4.5 OC. 0.5+7 OD. 7-0.5 Part B What is the value of the expression -4+ (4.5+ 7)? Enter the answer in the box.