Alyssa took a math test with 20 question and she answered 16 questions correctly. In order to get an A she needs to answer at least 90 percent of the questions correctly. How many questions would Alyssa need to answer correctly in order to get an A?

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x