Answer:
The formula to find the volume of a cube : s^3 so
S=40 cm
Now
by the formula,
40^3
64000
log(x+3)(2x+3)+log( x+3)( x+5) =2
logx(2x+3)+3(2x+3 )+log x(x+5)+3(x+5)

Answer:
No because even though you aren't actually picking the exact people yo do and don't wanna survey but your only surveying those who buy hot lunches when in order to get accurate data, you have to survey everyone who bought hot and cold lunches from the school cafeteria.
If you burned the same number of calories every minute while you kept biking for 45 minutes, and burned a total of 560 calories, then the number of calories burned per minute is 560/45=112/9