6.
Step-by-step explanation:
Since there are eight y's in two groups we can take them out which turns into
:)
3.
Answer:
128 ×5=640 so 128 people so after 4weeks
The tangent secant theorem says
PR × PS = PQ²
4 × (4+5) = PQ²
36 = PQ²
PQ=6
Answer: 6