Answer:
990, C
Step-by-step explanation:
The formula for the surface area of the bottom cushion is
A = 2wl + 2lh + 2hw (w is width, l is length, h is height)
w = 18, l = 21, h = 3
A = 2(18)(21) + 2(21)(3) + 2(3)(18)
A = 2(378) + 2(63) + 2(54)
A = 756 + 126 + 108
A = 990 (C)
A^2 + b^2 = c^2
9^2 + 12^2 = 225
square root of 225 is 15
Each sister gets 4/6 of a sandwich, or 2/3 of a sandwich.
Answer:
y=-1/2
Step-by-step explanation:
9x+5y=8
9x-3y=12
so 8y= -4
y=-1/2
if my answer helps please mark as brainliest
Answer:
dont panick, your teacher can't do anything, just try your best and she will see that you tried
