Answer:
289
Step-by-step explanation:
The sides are in the ratio of 52 to 68, or 52/68 = 13/17.
The ratio of area is the square of the ratio of sides.
Areas are in the ratio of 13^2 to 17^2 or 169/289
Answer:

Step-by-step explanation:
we know that
A <u>unit fraction</u> is a fraction with a numerator equal to 
so
In this problem we have

rewrite as a product of a whole number and a unit fraction

Answer: 20cm
Step-by-step explanation: 5cm x 4cm = 20cm
Hope this Helps!
What is the black box? and u solve that by forgetting the c is there so 4-10= -6 or -6c
13 is the answer.
7+2(5-2)=13
PEMDAS