Yvaries directly y a x . if x =5 when y =122 find x when y=30

Which formula gives the area of a triangle? a=1/2(b+h)

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?