350 at 5% for 4 years what is it simple interest to the nearest cent

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

Point q is equidistant from the sides of ∠tsr. find m∠rst.

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary