Answer:
1. x = 30
REC = 130
Step-by-step explanation:
2x + 70 = 4x + 10
60 = 2x
x = 30
you try the others
Good luck :D
Answer:
Step-by-step explanation:
must be r and s
because right at in middle of the distance between them is 0
Answer:
two and one fifth
Step-by-step explanation: