Extra practices help her be solid on new concepts.

Is the sentence correct?
And
( "on new concept") or ("in new concept")

2 answers

No, and it should be "in new concepts."
Thank you, Brooke.
Similar Questions
    1. answers icon 1 answer
    1. answers icon 1 answer
  1. Key Concepts & PracticesAnswer the questions or fill in the blanks to explain each concept. Complete the practice activity in
    1. answers icon 1 answer
  2. Lesson Name& Number Key Concepts & Practices Answer the questions or fill in the blanks to explain each concept. Complete the
    1. answers icon 1 answer
more similar questions