The irrigation arm is 300 ft. 300 ft is just the radius. The diameter is 600, because to get the diameter you must multiply the radius by two. So 600 is the land the irrigation arm covers.
Answer:
Step-by-step explanation:
The answer would be 85% in percent and 0.85 in decimal
You multiply 42 times .25 and you'll get 6.3 dollars as a tip