A tee-shirt company plans to hand out 1,830 coupons during May. It will hand out
the same number of coupons on each of the 31 days of the month. What is the
first digit in the quotient 1,830 = 31?
A. O 5
B. O 6
C. 7
D. 8

I’m stuck on this equation, anyone got the answer?

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15

What is the correct decimal form of 12%