Your answer is 90. Hope that helps!
Answer:
1.Yes
2.No
3.No
4.Yes
Step-by-step explanation:
Answer:
this may be wrond but I think it is -12 m/s
Step-by-step explanation:

62+175=237
check:
61.92+174.8=236.72
pretty close so 237 is your estimation
If you would like to find the average of 766 and 878, you can calculate this using the following steps:
766 + 878 = 1644
1644 / 2 = 822
The correct result would be 822.