He sold 4 loaves of bread
Answer:

Step-by-step explanation:
We have been given that vector v has a direction of (5,3). We are asked to find direction angle for v to nearest degree.
We know that direction of vector with components
can be determined by
.
Upon substituting the components of given vector in above formula, we will get:


Upon rounding to nearest degree, we will get:

Therefore, the direction angle for vector v is 31 degrees.
The 1/3 power is another way to write the cube root.
∛216 = 6
Divide the paper which is 21 inches (12+9) by 1.5 and you have your answer which is 14
To reflect over the x axis you just multiply the y value by -1 . So your answer is (5,3)