Angel is 8 years old and Alex is 30 years old x-y=30
Answer:
-3 2/7 per day
Step-by-step explanation:
-2 3/10 then put that all over 3 1/2
-23/10 divided by 7/2
-23/10 *21/7 = -23/7= -3 2/7 per day
the 10 cross out and make a 5
i should be right
I believe the 3rd answer down if the information you provided is correct
Squaring the sum on the top, rules out 1 and 2 (not squaring the 7 only)
then 4 times the difference. so I believe 4 (x-1) on the bottom.
Answer:

Step-by-step explanation:
Total red haired students = 15+5 = 20
Boys = 15
<u><em>Fraction:</em></u>
=> 
<u><em>In simplest form:</em></u>
=> 
Your answer would be x=-10.5
First distribute -2/3 to 3x and -9
-2x+6=15
Then subtract 6 from both sides
-2x=9
Divide both sides by -2
x=-4.5