7 times blank = 2 times blank
Blank = zero.
It is: 9 times 7 = 63
10
It is a question with infinitely many answers. For example, 21 * 0.1 210 * 0.01 7 * 0.3
7*11 = 77
The exponent tells how many times to use the base as a factor.
3*7 = 21
Blank = base.
the blank of 7 = 1/7 blank=recipricol
It is blank times 52.
Blank = base.