If its going by $11 for 2 hours then he babysat ?
ok so $11= 2 hours
11 x 3= 33 half of eleven is 5.5
so 33+ 5.5 = $38.50 so I believe the answer is 6 hours and 30 min but I'm not 100 percent positive
X= 7 don’t know why i have to keep typing for it to post

Step-by-step explanation:
The ratio cosine tell us that
- In a right angled triangle, the cosine of an angle is the side adjacent to the angle divided by the hypotenuse of the triangle.
In other words,

The side adjacent to angle a is 9. The hypotenuse is 41.
So

Answer:
16
Step-by-step explanation:
3x-2x=8
x=8
QR=8*2=16