ALGEBRA
posted by bad @ math .
Evaluate the expressions:
1. 8x when x=6
2. 3xsquared5x when x=2
3. 4((the absolute value sign) y12 (the absolute value sign))when y=5

You can do these. Just substitute the indicated number value or y in the equation and do the computation.
For example, in #3, if y = 5, y12 is 7 and the absolute value of that is +7. Multiply that by 4 for the answer.
Now you try the others. Show your work if you need further help. 
How are these:
1. 48
2. 22
3. 28 
whoa.i dunno

all correct.