Alexis ran 7.4 miles per hour for 2.5 hours. How far did Alexis run?

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

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

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36