The exponential form is just 7.
Answer:
7.722cm^2, x=129
Step-by-step explanation:
12*12=144- area of the whole square
the diameter for the circle is 12
radius is 6
Area for circle= pi* r²
3.142*6^2=113.112
144-113.112=30.888
30.888/4=7.722
The first one is $7.50
and the second one is 8 games
Find amount used:
Amount in the card = $20
Amount left = $13.28
Amount used = $20 - $13.28 = $6.72
Find duration of the call:
24 cents = 1 min
672 cents = 1/24 x 672 = 28 mins
Answer: The call was 28 minutes long.
Answer:
x + 4 = 5x - 6
x = 2.5
Step-by-step explanation:
x + 4 = 5x - 6
4 = 4x -6
10 = 4x
x = 2.5
