Biggest test ive ever had pls help

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

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?