3. Which sequence has a common difference of three? * O 3, 12, 21, 30,..
2,6, 18, 54, ...
o 21, 18, 15, 12,...
O 7, 10, 13, 16,

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