Find the unit rate, or cost of 1 gallon.
576/24=$24 per gallon
1664/64=$26 per gallon.
Paul's Paint sells paint for the least amount as 24<26.
There is a $2 difference.
1 and 2 over 3 cubic inches
For a complimentary pair of angles i.e a+b=90 degrees, then cos a= sin b
so;
3x+2=4x-10
2+10=4x-3x
x=12.0
Your work on 'd' is correct, and your answer is correct.
'f' has been answered where you posted it as a separate question.
You would want to convert miles per hour into feet per hour, then you should turn feet per hour into feet per second. Alternatively, you could turn miles per hour into miles per second, and then turn miles per second into feet per second
