300 tickets were sold. adult tickets cost 3.50 and child tickets cost 1.50. the total money made was 810 dollars. how many child tickets and how many adult tickets were sold?

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

Does anyone know how to do geometryme with this problem

Aphrase is shown read the phrase and give me the answer