arithmetic
posted by J .
How do I solve these questions?
3 1/3  2 2/5=
2.75 + .003 + .158 =
7/20 is equal to ?
What is the value of the expression
2x2+ 3xy – 4y2
when x = 2 and y =  4?
16x  8 =
If 2x – 3(x + 4) =  5, then x =
– 3(5 – 6) – 4(2 – 3) =

3 1/3  2 2/5=
3 1/3 = 2 4/3 = 2 20/15
2 2/5 = 2 9/15
2 20/15  2 9/15 = ?
2.75 + .003 + .158 = ?
7/20 = 0.35