Solve 4 tasks in Excel

Employer
[no-member:pro]Roman[/no-member:pro]
Project parameters
Type of cooperationOne-time project
SectionEducation and consulting
Prepaymentwithout prepayment
Payment methodsBank transfer
Acceptance of requestsfrom Jun 24, 2019 until Jun 25, 2019
Project description
4 tasks to be solved in Excel