Can someone explain the Unit Circle in simple terms? And at high school level. I just learned about it and I'm completely lost.

Which statement about perfect cubes is true

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account