Translate the sentence into an equation. Use x to represent the unknown number. A number increased by 16 equals 28.
A. 16x = 28
B. x + 28 = 16
C. 28x = 16
D. x + 16 = 28
Answer: D
Mathematics
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Solve the problem by using addition, subtraction, multiplication, or division as needed.A school bookstore ordered 223 copies of an English textbook. If the total cost was 
, find the cost of each book.
A. $20 B. $4683 C. $15 D. $22
Mathematics
Solve the system graphically.
A. (1, 21)
B. (1, 20), (-3, 12)
C. (1, 20), (-3, 12), 
D. 
, 
, 
Mathematics
In the figure below, angle 
and angle 
.
?
What is the measure of angle x?
?
?
A. 34
B. 40.5
C. 27.5
D. 129.5
E. none of these
Mathematics
Subtract.(-14x + 3x5 - 15x3) - (8x3 + 8x5 - 2x)
A. -5x5 - 23x3 - 12x B. -40x9 C. -5x5 - 23x3 - 16x D. -5x5 - 7x3 - 16x
Mathematics