Answer:
x = -2, proven below.
Step-by-step explanation:
3x + 7 + 2(4x+1) = 3(x-1) - 4
3x + 7 + 8x + 2 = 3x - 3 - 4
9 + 11x = 3x - 7
16 + 11x = 3x
16 = - 8x
-2 = x
The square root of 100 is 10
20 • 12 is 240
1/2 • 12 • 4 is 24
so 264
Answer: -2 73/100
Explanation: keep the -2 and just look at the .73. The .73 is in the hundredths place so you put it over 100.