in 30 counties in texas, there are (r) number of residents in each country. How many total residents are living in those 30 counties

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?