The graph shows the distance, y, in miles, of a moving motorboat from an island for a certain amount of time, x, in hours: What is the speed of the motorboat? (1 point)

a
13 miles per hour

b
26 miles per hour

c
39 miles per hour

d
117 miles per hour

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

Anyone know? will mark brainliest if correct

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