Solve.The sum of the ages of Art, Ben, and Cal is 59. Art is 1 year older than Cal and Cal is 1 year younger than Ben. Which of these people were teenagers 7 years ago?
A. Ben
B. Art, Ben, and Cal
C. Art
D. Art and Ben
Answer: D
Mathematics
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Draw a sketch to represent the vector. Refer to the vectors pictured here. 
3d
A. 
B. 
Mathematics
Subtract and simplify.
A. 4
B. 6
C. 5
D. 5
Mathematics
Solve the problem.A rectangular piece of tin has an area of 900 square inches. A square of 4 inches is cut from each corner, and an open box is made by turning up the ends and sides. If the volume of the box is 1776 cubic inches, what were the original dimensions of the piece of tin?
A. 16 in. by 41 in. B. 12 in. by 33 in. C. 20 in. by 45 in. D. 24 in. by 49 in.
Mathematics
Simplify the expression using the properties of exponents.(-2x2)7
A. -128x14 B. 128x14 C. 256x9 D. -128x9
Mathematics