Please help with these four I really need them for tonight, please!!!

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?