Write each repeating decimal as a fraction in simplest form:
1. 0.21 repeating

Find the value of the variable and the length of each secant segment.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

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. ?