1.
[tex]density = \frac{mass}{volume} \\ = 4480 \div 0.5 = 8960kg {cm}^{ - 3} [/tex]
2.
[tex]15 \times 8 = 120[/tex]
3.
[tex]7.50 \times 3 = 22.50dollars[/tex]
4. you got this one correctly
5.
[tex]465 \div 8 = 58.125 \: milesperhour[/tex]
6.
[tex]1000 \div 4.5 = 222.2 \: feet \: per \: seconds[/tex]
am going to number 10
10.
[tex]october \: has \: 31 \: days \\ 38.75 \div 31 = 1.25dollars \: per \: day[/tex]
9. 16 oz bottles at 1.25 dollars is cheaper than 20 bottles at 1.55 dollars so that 16 bottles is the best to buy
