What is the probability of flipping 5 tails in a row

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

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6