Find the area of the triangle. Round your answer to the nearest tenth. B
31 in.
540
А
31 in
c
a. 480.5 in.2
b. 661.4 in.2
C.
777.5 in.2
d. 388.7 in.2

679.5 in the area of the triangle

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m