My father decides increase my Pocket money by 20% I receive per month P100 a) what is the of the increase? ​

X+ y = 5 ; x - y =3 solve using linear combination

Me. i can't figure out this question. give an explanation too. .

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?