Alejandro rounded the number 76.518 to 76.5. jiro rounded the same number to 76.52. who is correct? explain your reasoning

Plz help plz give me the answer

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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 jame pay at the end?