OOH, that's tricky--- give a shot first though!
Answer:
-15 plus or minus the square root of 65 all over 4 (All over means fraction)
Answer:
Option A is the right answer.
146-4b = 122-1b
Reason: vertical angles
9. Let x equal the number
Two less than a number is
x - 2
Is more than 15 is
> 15
Put them together for
x-2 > 15
Now solve
x-2 > 15
x > 17
10. Let x equal a number
Seven more than a number is
x+ 7
Is less than or equal to 27 is
<= 27
Put them together for
x + 7 <= 27
Now solve
x+ 7 <= 27
x <= 20
