please help me !! David drew a double number line and stated that 50% of 36 is 16. Is he correct? Explain why or why not and include your own double number line below

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Combine like terms to make a simpler expression 3z+z

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?