Someone please help me

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?