The number 90 is 125% of what number

Which is an equation for the nth terms of the sequence 12,15,18,21

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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