Idon’t get this at all! can someone answer this for me? it’s due tomorrow!

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

Brent paid for 6 avocados with a $20.00 bill. he received $10.40 in change. construct and solve an equation can be used to find the price , of each avocados

Solve the system of equations. x=-2y+1 and x+2y=9. show work