just these simple maths percentage questions (i want to compare them to

[xxxsweetheartxxxjessxxx]

my 1s to make sure i have the right id Increase each of the quantity by the given percentage
a)90m by 20%
b) 240g by 5%
c) 16p by 30%
d) 44 seconds by 15%
8) £19 by 1 %

Decrease each quanitity by the given percentage
a) $24 by 10%
b) 5000kg by 25%
c) 80 m by 35%
d) 370cl by 5%
e) £6 by 2 %

4. a) express 17m as a percentage of 25m
b) what percentage of 50kg is 43kg
c) what is 7 pound as a percentantage of £20
(Please can you show me how you worked it out, on some but not all questions)
Thanks x respond fast too as it has to be done asap