Answer:
507.3
Step-by-step explanation:
(7.3x10)+(5x10)
evaluate the power
remove the parentheses
(7.3x1)+5x10 to the second power
multiply 7.3+5x100
7.3+500
calculate
there you go.
Answer:
B
Step-by-step explanation:
It is just asking how many meters tall are doors usually at. Clearly 30 meters isn't reasonable so just say how tall most doors are in meters.
height:length
1:2
x feet: 5 feet
You know the length and the ratio of the dimensions. From the ratio you know that the length is twice the height. So height = 5/2 = 2.5 ft.
