Alice solved the following equation:

-18 - 3x = 12
-3x = 6
x =-2

which of the following statements is true?
alice is correct.
the 6 should be 30 in step two.
the 6 should be -6 in step two.
the 6 should be -4 in step two.

Find the value of the variable and the length of each secant segment.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?