Answer:
its d
Step-by-step explanation:
x is the number of hours he charges for
The angle is 75.52 degrees
If there is a vector with the form a i + b j, the cosine of the angle between the given vector and the positive direction of the x - axis is calculated as:
cos θ = 
So, given the vector i+
, the cosine of the angle between the vector and the x-axis is:
cos θ = 0.25
Therefore, the angle θ between the given vector and the positive direction of the x-axis is:
θ = cos-1(0.25) = 75.52
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Well 3 packs for 6 dollars is 2 dollars a pack. while 2 packs for 5 dollars is 2.5 dollars a pack
1 cm^3 is equal to 1 mL so the answer would probably be 210 mL