Final answer:
Sasha is correct that 4/15 equals 0.2666... and 7/22 equals approximately 0.318181.... Her multiplication method is sound, but she should be cautious about rounding and significant figures.
Step-by-step explanation:
Sasha is correct in her understanding that 4/15 equals 0.2666... and that 7/22 equals 0.318181.... When she multiplies 1/15 (which is 0.066666...) by 4, the product is indeed 0.2666... Similarly, 1/22 is 0.0454545... and when multiplied by 7, the result is approximately 0.318181..., which Sasha rounds to 0.318888... Although her rounding is slightly off, her approach to multiplying to find the equivalent decimal is correct. It is important, however, to remember that in performing mathematical operations, the number of significant figures in the answer should match the number with the smallest number of significant figures among the numbers being multiplied or divided.