Ava swam four-fifths of a lap in the morning and seven-fifteenths of a lap in the evening. How much farther did Ava swim in the morning than in the evening

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5