23/4
If you divide the numerator and denominator by 2, you get simplest form.
Find the area of the squares.
4 ×4 = 16
Find the area of the wall.
20 × 10 =200
Divide 200 by 16.
200 ÷ 16 = 12.5
You need 12.5 squares.
I would add like terms, meaning subtract 6.4 from both sides.
3.5n = 36.1
Are you trying to add together everything she made in a span of time? If so:
22 + 55 + 38 + 25 = 140