Solve the problem.If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day, and so on, how much money will be in the bank after 30 days?
A. $9.30
B. $4.65
C. $0.30
D. $2.33
Answer: B
Mathematics
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Provide an appropriate response.Write 2-4 using a positive exponent.
A. 24
B. 
4
C. 
4
D. 
4
Mathematics
Solve.The gravitational attraction between two masses varies inversely as the square of the distance between them. If the force of attraction is 2.25 lb when the masses are 4 ft apart, what is the attraction when the masses are 6 ft apart?
A. 4 pounds B. 1 pound C. 3 pounds D. 2 pounds
Mathematics
Solve the system by graphing. 3x + 2y = 5-6x - 4y = 5
A. ? B. {(1.5, -1)} C. {(-1.5, -1)} D. {(1, 1)}
Mathematics
Write interval notation.{ x ? -4 ? x < 0 }
A. [-4, 0] B. (-4, 0] C. [-4, 0) D. (-4, 0)
Mathematics