**Easy question**

Is this a function or NOT??

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

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625