In a school there are 200 boys and 800 girls. Find the percentage of girls in that school.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

What is sin 7x/4 ? i need on this urgent trig

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