Answer:
15 feet
Step-by-step explanation:
Since this is a square the sides are of the same length.
Now the side multiplied by itself gives 225. Hence the length of the side is a number which multiplied by itself gives 225. It is easy to see that 15 × 15 = 225. Therefore the side is 15 feet long.
First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old
Now when she gains another 18 years (36-18=18) he will also gain those 18 years
When she is 36 he will have 6+18=24 years old
Answer is 24.
Answer:

Step-by-step explanation:







- When it happens that the product of the factors is the same as zero. It is divided into two possible cases.

- We solve the two equations:

<h2>Answer: </h2>

<h3><em><u>MissSpanish</u></em></h3>
Answer:
positive 29
Step-by-step explanation:
Answer: 10+30=40 :)
Step-by-step explanation: