Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.(Rate) ? 80
A. R ? 80
B. R + 80
C. R ÷ 80
D. 80 ÷ R
Answer: A
Mathematics
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Find the Jacobian 
or 
(as appropriate) using the given equations.
A. -9 B. 9 C. 21 D. -21
Mathematics
Solve the polynomial inequality. Express the solution using interval notation.x3 - 2x2 - 35x > 0
A. (-7, 0) ? (5, ?) B. (-5, ?) C. (-?,-5) ? (0, 7) D. (-5, 0) ? (7, ?)
Mathematics
Solve the problem.Given that p ? q is true, what can you conclude about the truth values of p and q?
A. At least one of p and q must be true B. Exactly one of p and q is true C. Both p and q are true D. p and q have the same truth value
Mathematics
Solve the problem.All 33 of the students in a mathematics class attended class on Monday. On Tuesday only 27 students attended. What was the percent decrease?
A. 81.8% B. 18.2% C. 77.8% D. 22.2%
Mathematics