Answer:
675 kg
Step-by-step explanation:
(3 kg/paver)·(225 pavers) = 3·225 kg = 675 kg
20% off...and she saves $13
so 20% of what number is 13
0.20x = 13
x = 13/0.20
x = 65 <== original price
210
30+30=60+30=90+30=120+30=150+30=180+30=210
2x(x+1)(x-1)(x+3)(x-3)
No
It can't because no number goes into 24 and 7, and 7 does not go its 24