Question 7 (2 points) Saved Sydney enjoys riding her bike. She can ride 40 km in 1 hour and 30 minutes.
a) Based on this rate of speed, how far can she ride in 1 hour? Round your answer to
the nearest tenth of a km. (Place answer in blank 1).

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.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?