Translate the indicated expression.Kevin owns a total of 120 shares of stock split between two companies. If y represents the number of the higher-priced stock, then write an expression in terms of y for the number of shares of the lower price stock.
A. y - 120
B. 120 - y
C. 60 - 
D. 60
Answer: B
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Solve the problem.At time 
a particle is located at the point (1, 1, 1). It travels in a straight line to the point 
has speed 2 at (1, 1, 1) and constant acceleration 
Find an equation for the position vector r(t) of the particle at time t.
A. r(t) = 
i - 
j - 
k
B. r(t) = 
i - 
j - 
k
C. r(t) = 
i - 
j - 
k
D. r(t) = 
i - 
j - 
k
Solve the problem.An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. Determine the grade needed on the fifth exam to get an A in the course.
A. 90 B. 100 C. 85 D. 95
Express the given vector as a linear combination of the unit vectors i and j.
A. 5i + 5j B. 3i + j C. -5i + 5j D. i + 3j
Solve the problem.Walt made an extra $9000 last year from a part-time job. He invested part of the money at 10% and the rest at 7%. He made a total of $810 in interest. How much was invested at 7%?
A. $3000 B. $9000 C. $6000 D. $4500