Area of chalkboard = 4 feet x 6 feet = 24 square feet.
Total cost = 24 square feet x $7.21 per square foot = $173.04
Answer: $173.04
Answer:
31/40
Step-by-step explanation:
3/8=15/40
2/5=16/40
15/40+16/40=31/40
The answer is 5.1 if you're looking for s all the work is in the picture
The answer is d. If it is wrong text me back sorry
Answer:
To add or subtract some rational numbers, you have to change the rational numbers so they have a common denominator. When you have a common denominator, you can then go on with the addition or subtraction on the numerator part.