The cost of a mobile phone call is 30 cents plus 20 cents per minute. find the possible cost of a call if it is shorter than 5 minutes

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Acylinder has volume 45π and radius 3. what is it’s height?

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.