Expand brackets first which would be 13 + - 12 - - 5*. So this would be 13- 12 + 5 = 6
*+5 because 2 negatives make a positive
Answer:69
Step-by-step explanation:
The GCF of 27 and 45 is 9
so there will be 9 people in each row.......45/9 = 5 rows of bugle players and 27/9 = 3 rows of drummers
