A watermelon consists of 90% water and 10% pulp. After drying the weight is 20 kg and 40% water is left. What was the initial weight?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

What is a rational number between 9.5 and 9.7

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. ?