Answer:
25%
Step-by-step explanation:
25% of 960 is 240. to find that we need to do...
0.25 x 960 = 240
add the percent increace to the 960.....
960 + 240 = 1,200
Hope this helped! Please mark as brainliest! Thanks!!
a=31
1/2(a-9)=11
a-9=22
a=22+9
