Question

Step by step explanation thanks

Answer 1

$99

Explanation:

10% = 10

100-10=90 then add 10% of that

10%=9

90+9=99

Answer 2

Explanation:

Let 1st no. be x

increase by 10%

x+x/10=11x/10

now decrease 10%

11x/10-(11x/10)/10=99x/100

the decrease is x-99x/100

x/100

decrease % is 1%