50° is the answer to your question.
1. Crippled, Disabled
Crippled is almost sound like a discriminating word and have a negative connotation where as disabled is more polished and reverent.
2. Relaxed, Easy-going
Both seem same but relaxed refers to free, pleasure and stress free but easy-going implies not serious and laziness.
3. Knockout, Beautiful
Knockout mainly used to imply someone is sex y where as beautiful is simple compliment for a person.
4. Young, Immature
Sometimes both are used in the same context but youth may be always a substitute for immature.
5. Skinny, Thi n Both are almost similar but actually someone skinny is called thin.
B, the $1.50 is a fixed number, but the additional $0.75 varies on how many miles travelled (x).
There is no TENTH in 192 so 192 rounded to the nearest TENTH is 192.
If you meant TEN then 192 rounded to the nearest TEN is 190.
Good Luck!