Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below?
23 – 412 – 7x+28=0
A. Two
B. Two or zero
C. One
D. Three or one

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Landon wrote that 3−2.6=4. which statement about his answer is true?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?