Step-by-step explanation:
We are asked to convert given percent to a decimal number.
We know to convert a number to decimal, we divide given percent by 100 as percent means per hundred.
We also know that to divide a number by hundred, we need to move decimal to two digits to left.
(15). [tex]7\%[/tex]
[tex]7\%=\frac{7}{100}=0.07[/tex]
(16). [tex]39\%[/tex]
[tex]39\%=\frac{39}{100}=0.39[/tex]
(17). [tex]5.15\%[/tex]
[tex]5.15\%=\frac{5.15}{100}=0.0515[/tex]
(18). [tex]0.75\%[/tex]
[tex]0.75\%=\frac{0.75}{100}=0.0075[/tex]
(19). [tex]\frac{1}{4}\%[/tex]
[tex]\frac{1}{4}\%=\frac{\frac{1}{4}}{100}=\frac{1}{4*100}=\frac{1}{400}=0.0025[/tex]
(20). [tex]\frac{3}{8}\%[/tex]
[tex]\frac{3}{8}\%=\frac{\frac{3}{8}}{100}=\frac{1}{8*100}=\frac{3}{800}=0.00375[/tex]
(21). [tex]135.9\%[/tex]
[tex]135.9\%=\frac{135.9}{100}=1.359[/tex]
(22). [tex]298.7\%[/tex]
[tex]298.7\%=\frac{298.7}{100}=2.987[/tex]
