Answer
2255.6 mm
Work Step by Step
Step 1) You first have to convert all numbers into mm, so it can be combined easily ... 1 cm = 10 mm; 1 in = 25.4 mm; 1 ft (12in) = 304.8 mm; 1 yd (3ft) = 914.4 mm; 1 m = 1000 mm
Step 2) Once all are converted, we proceed to add them together to come up with our final answer/solution ... 1 + 10 + 25.4 + 304.8 + 914.4 + 1000
Step 3) The final answer would be 2255.6 mm.