Please help me!
I’d really appreciate it!!

Her trip took 2hrs 30 minutes

Step-by-step explanation:

First part: She was going 80 miles an hour and only travels 40 miles so that's 30 minutes.

Second part: she traveled 100 miles at a speed of 50 miles per hour so that's two hours.

2hrs + 30 mins

2hrs 30 mins

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%