A rectangular box’s volume comes from multiplying its length, width, and height. To solve for height, use the base area first: length × width = 9 cm × 5 cm = 45 cm^2. The height must satisfy 45 cm^2 × height = 450 cm^3, so height = 450 / 45 = 10 cm. Checking quickly, a height of 9 cm would give 9 × 5 × 9 = 405 cm^3; 8 cm would give 360 cm^3; 11 cm would give 495 cm^3. Only 10 cm produces the given volume.

Phytates act as anti-nutrients by binding minerals in the gut and reducing their absorption. In soy and other plant foods, this means minerals like iron, zinc, and calcium are less available. Fermentation helps because the microbes used in fermentation produce phytase, an enzyme that breaks down phytic acid, lowering the phytate content. With fewer phytates, minerals are less chelated and more can be absorbed. So the true statement is that fermentation reduces phytate content, which can improve mineral uptake from soy products. The idea that phytates enhance mineral uptake is the opposite of how they work; they hinder absorption. It’s not accurate that fermentation increases phytates, and phytates do affect minerals, so saying they have no effect isn’t correct.

This type of question is about a position-based letter change: each position in the 5-letter word is transformed in a fixed way, regardless of the specific letter there. By comparing LOGIC to its partner BHFNK, you can read off the replacement for each position: the 1st letter becomes the 1st output letter, the 2nd becomes the 2nd, and so on. To solve CLERK, apply the same per-position replacements to each corresponding letter. Doing so gives JQDKB, matching the pattern observed from LOGIC to BHFNK. In other words, focus on how each position is transformed consistently across the word, not on individual letter-by-letter guesses. The result for CLERK under that pattern is JQDKB.

Look at how the sequence grows by the amount added each step. The differences between consecutive terms are 5, 10, and 20, which are doubling each time. If that pattern continues, the next difference should be 40. Adding 40 to 38 gives 78, so the next number is 78. The other options would require adding amounts that don’t follow the doubling pattern (for example, 38 + 30 = 68, 38 + 50 = 88, 38 + 60 = 98), so they don’t fit the established rule.