Answer:
She can take 5 friends to the movie. She buy a total of 6 child tickets and 1 adult. She has to pay for her own ticket, that leaves enough for 5 friends.
Explanation:
6.25x + 9.75
50 Subtract 9.75 from both sides
6.25x + 9.75 - 9.75
50 - 9.75
6.25x ≤ 40.25 Divide both sides by 6.25
x ≤ 6.44
She can bring 5 friends.
Check
6(6.25) + 9.75 ≤ 50
37.50 + 9.75 ≤ 50
47.25 ≤ 50