Bobby has baseball practice monday, wednesday, and friday. each practice is 2 1/2 hours. bobby says he will have practice for 4 hours each week.
part a
without multiplying, explain how you know bobby is incorrect.
part b
how long will bobby have baseball practice this week? type your answer as a mixed number. show your work.

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

We just started the introduction into circles and i have no idea how to do this.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn