Extra credit assignment pls help

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?