Solve the compound inequality.20x - 2 ? 9x + 31 and x - 4 ? -1
A. 3 ? x ? 4
B. No solution
C. x = 3
D. All real numbers
Answer: C
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Solve the problem.Five friends drove at an average rate of 60 miles per hour to a weekend retreat. On the way home, they took the same route but averaged 70 miles per hour. What was the distance between home and the retreat if the round trip took 10 hours?
A. 646
miles
B. 5
miles
C. 323
miles
D. 4200 miles
Determine the monthly principal and interest payment for the mortgage. Use the principal and interest payment formula 
A. $2444.11 B. $13,085.86 C. $31,416.26 D. $2078.11
Solve the problem.A tree casts a shadow 19 m long. At the same time, the shadow cast by a 42-cm tall statue is 68 cm long. Find the height of the tree. Round results to the nearest unit.
A. 30 m B. 12 m C. 31 m D. 11 m
Solve the system of linear equations.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?