Naomi has earned $54 mowing lawns the past two days. she worked 2 1/2 hrs yesterday and 4 1/4 hours today. if naomi is paid the same amount for every hour she works, how many does she earn per hour to mow lawns

We add the two times, 2 1/2 hours and 4 1/4 hours, together, and we get 6 3/4. ( 1/2 = 0.50, and 1/4 = 0.25, so 0.50 + 0.25 = 0.75. 0.75 = 3/4).

54 / 6 3/4 = 8.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft