What is 25÷405 i don't get it : -( but my teacher says there is not suppose to be a remainder

Point e(−5, 3) and point d(−4, −3) are located on the grid. which measurement is closest to the distance between point e and point d in units? a) 6.1 units b) 6.3 units c) 6.5 units d) 6.7 units

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.