USE PEMDAS
8(7+23)=8(7)+8(23)
=56+184
=240
Answer:

Step-by-step explanation:
step 1
Find the area of the trapezoid (brownie pan)

step 2
To find the number of days , divide the area of the brownie pan by 20 square centimeters of brownie

The American dream that means to me is being rich and famous
Answer:
I don't understand the array of numbers as written in the question.
Step-by-step explanation:
See attached image
Step-by-step explanation:
12 - 1/2r = ( 13 - 3/2r ) - ( 1 - r )
r - 13/6 = ( 7r - 3/2 ) - ( 2/3 + 6r )
13r + 20 = ( 6r + 7 ) + ( 13 + 7r )
-12 + r = ( -8 - r ) + ( 2r - 4 )