The two trapezoids below are similar. What is the length of EF

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

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Plz hurry evaluate the expression a+b where a=8 and b=19