Answer:
9
Step-by-step explanation:
n(A)+n(B) [n(A)=cardinal numbers of set A.so we have to count the elements and write .
=4+5
=9
The square root of 169 is 13 and 170 is 13.03
Answer:
4 hours
Step-by-step explanation:
1+1=2
6-2=4
the answer is 7 feet and 5 inches
