Determine whether the equation is linear or nonlinear.
x + 3 = 0
A. linear
B. nonlinear
Answer: A
Mathematics
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Convert the units using unit fractions.42,240 ft = 
mi
A. 8 B. 9 C. 8.5 D. 211.2
Mathematics
Use the graph of the polynomial function f(x) to solve f(x) = 0.
A. -2, 1, 3 B. -3, -1, 2 C. -3, 2 D. 1, 2, 3
Mathematics
Solve.John owns a hotdog stand. He has found that his profit is represented by the equation 
with P being profits and x the number of hotdogs sold. How many hotdogs must he sell to earn the most profit?
A. 25 hotdogs B. 28 hotdogs C. 29 hotdogs D. 50 hotdogs
Mathematics
Find the unknown value.56.5% of 4000 is what number?
A. 1740 B. 2260 C. 1760 D. 2000
Mathematics