1 trampoline= 98.50
y trampolines= 689.50
What I did was i got the number (689.50) and divided it by the other number (98.50)
[tex]689.50 / 98.50 = 7[/tex]
And to check if its correct, I multiplied 98.50 with 7, which did come to 689.50.
7 trampolines= 689.50
thank you :D