Solve the problem.A pair of running shoes costs $84 and a pair of basketball shoes costs 
Find the total cost for both pairs of shoes.
A. $40
B. $147
C. $21
D. $143
Answer: B
Mathematics
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Find ?y for the given values of x1 and x2.y = x3 + 2x; x = 2, ?x = 0.01
A. 0.014 B. 0.07 C. 0.007 D. 0.14
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Solve the inequality and graph the solution set.-1 ? 2x + 3 < 9
A. 
B. 
C. 
D. 
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Provide an appropriate response.If f(x) = 
+ x, then f(-2) =
A. 7.
B. -7.
C. 
-2.
D. 0.
E. 3.
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Write the number in standard form.7.21 × 10-4
A. -721,000 B. 0.0000721 C. 0.00721 D. 0.000721
Mathematics