Answer:

Step-by-step explanation:
1. Value of x
The diagonals of a rectangle are equal, so
PR = QS

2. Length of each diagonal
PR = 11x - 20 = 11×18 - 20 = 198 - 20 = 178
QS = x + 160 = 18 + 160 = 178
The length of each diagonal is 178.
Answer:
-5.3a - 12.72b - 8a² + 2ab
Answer: x=10
Step-by-step explanation:
Picture below.
Your answer is 167.76 you had to add 209.54 to 57.72 then subtract 72.00 and 27.50 from that answer