Just little pieces. Normally round chips or squares but you can use anything
Answer:
139.48
Step-by-step explanation:
cos(55)=80/x
80/cos(55)=x
Answer: 5.3 Hours
Step-by-step explanation: 140 mi there at 56 mi per hour would be 2.5 hours. Then back 140 mi at 50 mi/h would be 2.8. 2.5 plus a 2.8 is 5.3 hours
C because if it was constant then for day 3 the distance would be 65.4 instead of 64.8