Plz i have exam i need the answers anyone

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

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

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =