6 :)
no. of books: 1 2 3 4
combinations: 12, 13, 14, 23, 24, and 34
Answer:
18
Step-by-step explanation:
bc 8 digits in the ones place, and less than 21 greater than 15
Answer:

Step-by-step explanation:
Solve the value of
:

-Combine
and
by subtracting
by
:


-Subtract
on both sides:


-Multiply both sides by
, the reciprocal of
:



Therefore, the value of
is
.
Answer:
2.2
Step-by-step explanation:
4.4 + -2.2 = 2.2
....................................................................