All you have to do is multiply the 80 adults by the cost of an adult tickets wich is 80 x 8=640 and then calculate the cost of children's tickets which is 20 x 20=400 then add 400 to 640 400+640 = 1040 then subtract the amount the school donated from that which is 1040-125= 915 and 915 is your answer
hope this helps! :)
Answer:
11/20
Step-by-step explanation:
5x + 5 = 4x + 10
5x - 4x = 10 - 5
x = 5