Your answer is c. If you are struggling divide to backtrack and that should help you get to the answer.
4^3 is 64 and 3^4 is 81. Therefore the answer to the circled question is -17.
Cut 25 with 5
5x3 = 15
15 = 15
ANSWER

EXPLANATION
We want to simplify

We multiply the first fraction by the reciprocal of the second fraction to obtain,

We cancel the common factors to get,

This gives us,
Answer:
240cm²
explanation
Diagonal ²=Length ²+breath ²
26²=10²+length ²
676=100+length ²
576=length ²
length=24cm
Area of a rectangle=length×breath
Area=24×10
=240cm²