Donna was playing a trivia game where you gained points for correct answers and lost points for incorrect answers. At the start of round 2 she was at −300 points. During round 2 she answered twelve 50 point questions correct and she answered four 50 points questions incorrect. What was her score at the end of the round 2?

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

(3x-8) or (3x+8)

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8