Answer:
Step-by-step explanation:
There are three 1/3 yard lengths in 1 yard since we cut it into three pieces.
Answer: Lines R and B are perpendicular
Step-by-step explanation: Slope of R is -1 and the slope of B is 1. Perpendicular lines have opposite slopes
Answer:
associative
Step-by-step explanation:
u switched parentheses
Answer:
20
Step-by-step explanation:
20+20=40