Answer:
option 4
Step-by-step explanation:
Percent change is calculated as
× 100%
change = 15 - 10 = 5 , then
percent change = 
× 100% = 5 × 10% = 50%
To find the area, you will need to times the length with the width.
So,
2.25*1.8=4.05 meters
1m=100cm
4.05m=405cm
Hope this helps.
Answer:
-1/6
Step-by-step explanation:
-21/2÷6
-2 x 1/2 x1/6
-2x1/12
-1/6
please mark brainliest
If Bob can paint the fence in 4 hours, then in 1 hour he gets 1/4 of the fence painted. If Sarah can paint the fence in 2.5 hours, then she gets 2/5 of the fence painted in one hour (1/2.5 = 2/5). We add those amounts together and set them equal to 1/x, x being the the total time it will take them to paint the whole fence. 1/4 + 2/5 = 1/x. Find a common denominator first, then add the left side together. 5/20 + 8/20 = 1/x. 13/20 = 1/x. Cross-multiply to get 13x = 20 and x = 1.54 hours, just a bit over an hour and a half.
0.7135 minutes = 42.81 seconds
0.7135 seconds = 0.0118916667 seconds
Is this the sort of thing that you were asking for...?
