78
3 x 13
168
13 X 3 = 39
13 times 9= 117
1+3 = 4 but 13 = 1
39/1
1 x13 =13
Yes. 3 months is equal to about 13 weeks.
If ten times the number n decreased by 13 is equal to the square of the same number n increased by 3, then the value of n is either 8 or 2.
150 x 13 = 1950
16 * 13 = 208