4(a*b)=(4*a)b is an example of which algebraic expression

Asphere has a diameter of 10 in. what is the volume of the sphere?

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.

What is the average diastolic blood pressure for adults