100 points , I need to know the answers to this

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.