50%of alk the cakes jenny baked that week were party cakes 1/5 were fruit cakes, and the remainder were sponge cakes what percentage of cakes were sponge cakes ?

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Icould really use some with this question.

State one method by which you can recognize a perfect square trinomial.