20. factor –25x – 5.

a. –5(5x2 + 1)
b. –5(5x + 1)
c. –5x(25x + 5)
d. –5(5x2 + 2)

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

Find the value of x. round the length to the nearest tenth

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?