Solve the problem.If three times a number is decreased by 2, the result is 13. Find the number.
A. 6
B. 8
C. 5
D. 4
Answer: C
Mathematics
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Solve the equation.6.2x + 3 = 40.2
A. 7 B. 6 C. 18 D. 3.2
Mathematics
Solve the equation.7 = s + 1
A. 6 B. -6 C. -8 D. 8
Mathematics
Multiply and simplify. Express answers in exponential form with positive exponents only. Assume that all variables represent nonzero quantities.x ? x-7
A. x6
B. 
C. x8
D. 
Mathematics
Find the exact value of the expression. Do not use a calculator.cos 
+ tan 
A. 
B. 
C. 
D. 
Mathematics