Your friend is standing on a platform that's 9 feet tall. You are standing 12 feet away from the platform. You and your friend each want to hold one end of a banner. How long does the banner have to be?

Yo y do yall have 2 stars that means yall wrong bro

Solve 2x+y=3 x+y=5 in substitution method

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?