PLEASE HELP

Find y in parallelogram PQRS.
PT=y, TR=3x+1, QT=3y, TS=5x=11
Y=? X=?

Can someone plz me with 11,12,13 plz show work

If f(x)=x/2-3 and g(x)=4x^2+x-4, find (f+g)(x)

An animal shelter spends $4.00 per day to care for each bird and $6.50 per day to care for each cat. olivia noticed that the shelter spent $212.00 caring for birds and cats on thursday. olivia found a record showing that there were a total of 38 birds and cats on thursday. how many birds were at the shelter on thursday?