Answer:
s+6+s+6+s+s+2s=102, s=18
Step-by-step explanation:
The perimeter is the sum of the side lengths, so
the equation is s+6+s+6+s+s+2s=102.

Answer:
x=53
Step-by-step explanation:
pythagoras theorem
a^2 + b^2 =c^2
here a and b are two small sides and c is hypotenuse (longest side)
28^2 + 45^2 = c^2
784 + 2025 =x^2
2809 =x^2
=x
53 =x
Answer:
Step-by-step explanation:

Step 1: Subtract 4 form both sides
Step 2: Multiply both sides by (-3). when we are multiplying by (-3) the < will change to >.

Answer:
All numbers not decimals are natural numbers
Step-by-step explanation: