The ratio of the weight of a book to the weight of a mug is 7: 5 what fraction of the total weight of the book and mug is the weight of the book?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?