Katelyn buys a book that has an original selling price of $42. the book is discounted 35%. katelyn mud must pay a 9.5% sales tax on the discounted price of the book. what is the total amount katelyn must pay for the increase

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

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Ineed in figuring out this problem.