Modified TRUE or FALSE, write True if the statement is correct, supply the correct answer if the statement is False. 11. 2 x 2 - 4 - 2 + 4 = 12
12. (8 + 2) - (9-22) - 6
13. 32.15 -5 + (6 + 4)= 16
14. 5 + 2 - 3 = 4
15. 25 - 5 x 4 + 1 = 1

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?