Answer:
a.
![s=(95-a)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/v86dgm22jskx3o66ieu2umy7w8bp7llqqs.png)
b.
![b=(300-a-s)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/uffsnfn1nkh3gxpwescxt3b467srgj3lr4.png)
Explanation:
a. let s denote shirts and a denote athletic shoes. given that the shirts are priced the same and that the total amount spent was $95.
#The price of each shirt can be calculated using the expression;
![2s+a=95\\\\2s=95-a\\\\s=(95-a)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/2huivmq2qep3wzt5fe5epo4jrh3wkvipem.png)
Hence, the price of each shirt is obtained using
![s=(95-a)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/v86dgm22jskx3o66ieu2umy7w8bp7llqqs.png)
b. First we have to understand that slacks and shoes have to be bought in pairs as a single unit but a pair of blazer is 2 units.
Let a denote the slacks, s shoes and b the blazer.
#Therefore our expression will be:
![a+s+2b=300\\\\2b=300-a-s\\\\b=(300-a-s)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/614d7x1x6jit18k5iiua0s3pk13iosw7ok.png)
Hence, the price of each blazer is calculated using the expression
![b=(300-a-s)/(2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/uffsnfn1nkh3gxpwescxt3b467srgj3lr4.png)