Solve the number problem by finding the value of the unknown number.If twice a number is increased by 1, the result is 23.
A. 22
B. 11
C. 16
D. 8
Answer: B
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Solve the inequality 
. Round your answer to two decimal places.
?
A. 
B. ?
C. ?
D. ?
Solve the problem.A glass has circular cross sections that taper (linearly) from a radius of 6 cm at the top of the glass to a radius of 5 cm at the bottom. The glass is 14 cm high and full of lemonade. How much work is required to drink all the lemonade through a straw if your mouth is 7 cm above the top of the glass? Assume the density of lemonade equals the density of water. Round to two decimal places when appropriate.
A. 0.57 J B. 1.78 J C. 2.84 J D. 42.24 J
The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.6, 7, 8
A. right triangle; 7 B. right triangle; 8 C. not right triangle D. right triangle; 6
Solve the equation using the addition principle.
+ x = 11
A. 
B. 21
C. 5
D. 