Atown had about 2120 acres of pine trees forty years ago only about 13% of the pine trees remain how many acres of pine trees remain

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles