Answer:
6.25x+4.50x=550
6.25x+4.50(45)=550
6.25x+202.50=550
6.25x+202.50-202.50=550-202.50
6.25x=347.50
6.25x÷6.25=347.50÷6.25
x=55.6
she could get 55 adult size T-shirts
I hope this is good enough:
