Answer:

Step-by-step explanation:

Answer:
B.
Step-by-step explanation:
A positive times a negative number equals a negative number, but a negative times a negative equals a positive number
Answer:
B=112
Step-by-step explanation:
Angle B is on the same line as angle A(68). They would need to combine for a total of 180 degrees. So 68-180=112
perimeter =QR+RS+ST+TU+UQ =26.1
RQ = 5.39
RS = 4.47
ST = 3.61
TU = 4.12
UQ = 8.54