Solve the problem.One of Sal's customers ordered items costing $5.97, $12.39, $19.12, and $20.35. If Sal's commission on each item is 30%, what is his total commission on this sale? Round to the nearest cent.
A. $11.61
B. $11.24
C. $17.35
D. $15.56
Answer: C
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Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. s = t2 + 
[s is the displacement. Find v, then find a]
A. 2 + 
B. 1 + 
C. 2 - 
D. 2t - 
Find the unit vector having the same direction as v.v = -3i - 4j
A. u = - 
i - 
j
B. u = 
i + 
j
C. u = -15i - 20j
D. u = - 
i - 
j
Use mathematical induction to prove the statement is true for all positive integers n.n ? 2n
What will be an ideal response?
Simplify the expression so that no negative exponents appear in the final result. Assume all variables represent nonzero numbers.
A. 3x6y3
B. 3x11y4
C. 
D. 