Answer :
The answers to all the math problems are as follows -
9 percent as a decimal = 0.09
100 percent in decimal form = 1
7.5 percent as a decimal = 0.075
The percentage to decimal can be calculated by dividing the percentage by 100. This is because the percentage is indicative of 1/100.
So, calculating the decimal form of each percentage.
For the case of 9 percent -
Decimal form = 9/100
Performing division
Decimal form = 0.09
For the case of 100 percent -
Decimal form = 100/100
Performing division
Decimal form = 1
For the case of 7.5 percent -
Decimal form = 7.5/100
Performing division
Decimal form = 0.075
Thus, the percentages are 0.09, 1 and 0.075.
Learn more about percentage -
https://brainly.com/question/24304697
#SPJ4