Answer:
Most effective - Practice quiz
Second most effective - Interleaved practice
Moderately effective - Highlight
Moderately effective - Keyword mnemonics
Explanation:
One is that it helped them prosper and made them more advanced
2) 22.5 units
3) 16.5 units
4) 28.125 units
5) 31.5 inches
6) 49.5 feet
Hope this helps! If its not to much trouble, could you give me brainliest?