1. 2a- [3b - (c-d) ] = 2a-3b+ ( ) 2. 2a - [3b - (c-d)] = 2a - b + (. )
3. 3a + 2b - 4c = 3a + ( )
4. 3x
6.

Write 17/20 as a decimal and as a percent.

9/10 divide by -3/15 as a mixed number

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex