X=-4 you have to substitue first so you put the equation where the X is and then you would distribute and then add the numbers that have the common exponent
Im pretty sure its B if not im sorry :(
Let's see -
Let's solve the first question step-by-step
(WARNING - This may confuse you a little)
1)
4 1/8 + 2 1/3
= 33/8 + 2 1/3
= 33/8 + 7/3
= 155/24
= 6 11/24 --------> Note that this is your final answer and it already looks simplified down to its simplest form. :)
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2) This equation, as far as solving it, is no different than number 1. Let's go for it!
5 17/18 - 2 2/3
= 107/18 - 2 2/3
= 107/18 - 8/3
= 59/18
= 3 5/18 -----------------> This is your final answer, and, as before, it looks simplified enough.
↑ ↑ ↑ Hope this helps! :D
For volume you would do 20 x 8.5 x 7.5 = 1275 ft^3
For surface are you would add up all the area of the faces
left and right face = 8.5 x 7.5 = 63.75 each
front and back = 20 x 8.5 = 170 each
top and bottom = 20 x 7.5 = 150 each
total = 767.5 ft^2
Answer: it will cost $ 1,113
Step-by-step explanation:
just do $ 26.50 times 42
