Answer: 
Step-by-step explanation:
Do you have to use substitution?
Answer:
-16
Step-by-step explanation:
(-3 + (-5))(-3 - (-5))
(-3 - 5)(-3 + 5)
(-8)*2
<u>-16</u>
<span>240/6 is 40. so it would be 40 miles per hour (mph)</span>
Answer:
AC = 38
Step-by-step explanation:
AB = BC
4 - 5x = 2x + 25
-7x = 21
x = -3
AC = 2(BC) = 2(2x + 25) = 4x + 50 = 4(-3) + 50 = -12 + 50 = 38
AC = 38
