Answer:

Step-by-step explanation:
i think
Answer:
A
Step-by-step explanation:
Answer: -7
Step-by-step explanation: y+3x=8x-7
subtract 3x from both sides y=5x-7
y=Mx+b
b=-7
It's C because 1 and 5 are the same angles so they are parallel.
Answer:
275.57
Step-by-step explanation:
258.75 ×6.5=16.817
275.57 +26.82 =275.57