A crane has a cable with a breaking strain of 6400 kg measured to 2 significant figures.
It is used to lift crates which weigh 90 kg measured to the nearest 10 kg.
What is the greatest number of crates that can safely be lifted at on time without breaking the cable??
Some working must be shown.

If you help me, I will forever thank you. ❤❤

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start