Answer:
a= 9
Step-by-step explanation:
If you are using the forumla a+b=c
a+48=57
57-48=9
a=9
9=48=58
Answer:
33.75
Step-by-step explanation:
45x0.75=33.75
Answer:
Undefined
Step-by-step explanation:
Its parallel to y-axis so the slope is undefined
Answer: 1, 10
Step by step explanation: