Answer:

Step-by-step explanation:
Given

Required
Solve
Open the brackets
= 
= 
Apply law of indices:
= 
= 
= 
The last one
yes
im right u can ask google
Answer:
<h2>The son is 10 Mary is 28</h2>
Step-by-step explanation:
I hope dis helps
Answer:
20 m²
Step-by-step explanation:
<u>Formula (Area of triangle):</u>
<u />
From the triangle, we can see that the base of the triangle is "7 + 3" m and the height of the triangle is "4" m.
<u />
Simplify the right-hand-side as needed to evaluate the area.
<u />
<u />
Therefore, the area of the provided triangle is 20 m².
Learn more about this topic: brainly.com/question/15442893
Answer: 6
Step-by-step explanation:
2 free books7 purchased books=? free books21 purchased booksCompare the denominators.2 free books7purchased books=? free books21purchased booksTo get from 7 to 21, multiply by 3. Multiply the numerator and denominator by 3 to find the number of free books Larry got.2 free books37 purchased books3=6free books21 purchased booksLarry got 6 free books