17. An equation is shown. 3×7=+7 What number makes the number sentence true? A 3 B, 14 C. 21 D. 28

17. An equation is shown.

3×7=+7
What number makes the number sentence true?
A 3
B, 14
C. 21
D. 28

Leave a Reply

Your email address will not be published. Required fields are marked *