Can someone me with these three? > _< i am so confused on them and will give to every person who answers these! : -)

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Plz hurry evaluate the expression a+b where a=8 and b=19

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply