Find the perimeter of a pantry shelf that measures 3 yards by 5/8 yard

7 1/4 yards or 7.25 yards

Step-by-step explanation:

3+3=6

5/8+5/8=1 1/4 or 1.25

6+1 1/4=7 1/4 or 7.25

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours