B the answer is b bc c and a are wrong and it wouldn’t be correct
Answer:
The expression is: 100 -a - 2b
Step-by-step explanation:
One piece of length a and two pieces of length b, i.e., (2 times b) are a total length of (a + 2b). We are asked to express the remaining part of the wire, originally 100 cm long, so that must be 100 minus the total pieces cut out:
100 - ( a + 2b ) = 100 -a -2b
Well actually Patty is faster by 4 6/10 seconds. Since 33 9/10 - 29 3/10 = 4 6/10
