Answer:
A 2 by 2 inch square has an area of 4 square inches.
If its area is increased by 21 inches, then its area equals 25 square inches.
To find the length of the side we take the square root of 25 square inches which is 5 inches.
Step-by-step explanation:
The required values are ~
Refer to attachment for solution ~
I'm assuming you're being asked to solve for the variable in each of the given problems.
For question 12: y=1 1/8 (mixed number)
For question 16: n=-1 2/9
This sort of tricky fraction division is best done using a calculator. You'll save yourself a lot of time.
Answer:
44
Step-by-step explanation:
Gina is four years younger so
18+4=22
since its twice davids age
22×2=44
