40% of a given number is 8...
0.40x = 8
x = 8 / 0.40
x = 20....so 20 is the given number
what is 15% of 20...
0.15(20) = 3 <==== ur answer
She earned $13 per hour for gardening and $10 an hour for office work.
True, and it's called an isosceles right triangle :D