CAN SOMEONE HELP!!?

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.