Please help I will mark brainliest In a lab, a scientist puts x bacteria on a culture at 1:00 pm. The amount of
bacteria triples every hour. At 7:00 pm when there are 255,150 bacteria in
the culture. What is the value of x? Enter numbers only pleaseee

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1