Which of the following are true?
(a) All squares are rhombi.
(b) All rectangles are parallelograms.
(c) All parallelograms with congruent diagonals are rectangles.
(d) All rhombi with congruent diagonals are squares.
(e) Both (a) and (b) are correct.
(f) Answers (a)–(d) are all corr
(d) All rhombi with congruent diagonals are squares.
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Evaluate the expression.251/2
A. 5
B. 25
C. 
D. 10
Solve the problem.One conveyor belt can move 1000 boxes in 6 minutes. Another can move 1000 boxes in 10 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?
A. 
minute
B. 15 minutes
C. 
minute
D. 1
minutes
Divide, if possible. Write the answer in simplest form.27 ÷ 
A. 
B. 4
C. 5
D. 6
Find the LCD for the rational expression.
, 
A. (x + 1)(3x - 1) B. (x - 1)(3x + 1) C. 3x - 1 D. x + 1