Solve the problem.The linear equation in two variables y = 1200x + 2646 models the altitude above sea level, y, in feet, of an airplane x minutes after taking off from a high plateau. The equation indicates that the airplane's altitude is initially 2646 feet above sea level and increases 1200 feet each minute. Find a solution of 
using 4 for x.
A. (4, 7546)
B. (4, 4800)
C. (4, 7446)
D. (4, 7346)
Answer: C
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Determine all values for the digit d that make the first number divisible by the second number. If none exist, so state. 414,3d2 is divisible by 8 but not 16.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.Simplify: 
3
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in white on a black background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix A.
A. 
B. 
C. 
D. 
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 995 R4 B. Incorrect; should be 994 R5 C. Correct D. Incorrect; should be 995 R6