Answer:
x=-13/2=-6 1/2
Step-by-step explanation:
13 3/4 +x-7 1/4=
6 2/4+x
x= -6 1/2
It should be 10 children in the sixth row
fourth row had 12, fifth has 11 and sixth has 10 - (the pattern continues)
1 mile------1,6 km
x mile------6 km
x=(6*1)/1,6
x=6/1,6
x=3,75 miles≈4 miles
288
8 times 6 times 6
Answer: 16