For 27) D
For 28) A
Hope that helps!
These problems really aren't hard just set them equal to each other and see if what they are saying is true. Are they equal? Do they both equal 0?
It takes 5 minutes per square foot (400/180=5) and so 5 minutes per square for 720 squares: 720x5=3,600. 3,600 minutes is equivalent to 60 hours so it takes him 60 hours.
70 liters ÷ 100 samples= 0.7 or 7/10 liter per sample
Hope this helps! :)
Answer:
20
Step-by-step explanation:
50 - 20 = 30
30 ÷ 1.50 = 20
