I need the answer

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

4+(2+x) can you me solve this problem