Answer:
-2.5
Since he already has saved more money than he needs its going to be a negative.
Step-by-step explanation:
1. Create a equation
a. The equation must equal 240 because we know that is the total Jack is saving for
b. He already has 260$ so we must add it within the equation
c. We add 8x because we know he gets 8$ a week but since we dont know how many weeks we will use the variable x
8x + 260 = 240
2. Get x by itself. Do this by subtracting 260 to both sides of the equal sign
8x= -20
3. Divide 8 to both sides of the equal sign
x=-2.5
L = w+22
2(l+w) = 4040
2(w+22+w) = 4040
2w + 22 = 4040/2 = 2020
2w = 2020-22 = 1998
w = 999ft
l = w+22 = 999+22 = 1021ft
w = 999 ft
This is your answer 8,000,309
Circumference of a sphere: 2 * pi * r
8 / 2 = 4
r = 4
surface area of a sphere: 4 * pi * r^2
4 * pi * 4^2
4 * pi * 16
64pi
answer is c :)