Add -1+ using the number line Select the location on the number line to plot the sum.
+
+
-2
4 3 2
1-1
1
on +
3
- 1 1 1 1 1 1 1 1 1 1 1
ON+
4
4 3 2 10
5 5 5 5
1

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project