Check to see whether the given value is a solution to the equation. \( \frac{1-3 z}{8}=\frac{10-2 z}{10} ; z=-5 \) It is a solution. It is not a solution.

Evaluate each expression. \( \begin{array}{llll}\text { 19. } 3^{0} 1 & \text { 20. } 9^{0} 1 & \text { 21. }(5 a)^{0} & \text { 22. }\left(2^{5} \cdot 2^{3}\right)^{0} \\ \text { 23. } 6^{-1} & \text { 24. } 4^{-2} & \text { 25. }\left(\frac{3}{5}\right)^{4} & \text { 26. }\left(\frac{4}{5}\right)^{2} \\ \text { 27. }\left(\frac{1}{4}\right)^{-1} & \text { 28. }\left(\frac{2}{5}\right)^{-2} & \text { 29. }\left(-\frac{1}{3}\right)^{-3} & \text { 30. }\left(-\frac{2}{3}\right)^{-3} \\ \text { 31. } 49^{\frac{1}{2}} & \text { 32. } 27^{\frac{2}{3}} & \text { 33. } 64^{\frac{4}{3}} & \text { 34. } 25^{\frac{3}{2}}\end{array} \)

(41) A can of regular soda contains about 40 grams of sugar. The average American goes through about 600 cans of soda a year. That's well ov 20,000 grams of sugar from soda a year! (4) Write 20,000 in scientific notartion. 20,000 ?

What is the benefit of the plasma membrane being selectively permeable? It allows any substance through the membrane, ensuring that the cell has all the nutrients it requires. It guarantees that the cell will not grow so much that it ruptures. invading pathogens from infecting the cell.

Salt diffuses from an area of high concentration to an ares of low concentration, the salt is moving ___ its concentration gradient. up down

24. Make Sense and Persevere What is the least number of points you must plot to have examples of all four sets of numbers, including at least one positive integer and one negative integer? Explain.