Answer:
-12y+48
Step-by-step explanation:
6(7-3y)+6(y+1)
42-18y+6y+6
-12y+42+6
-12y+48
All you have to do is the amount she bought divided by 0.05 and then add the answer you get to the amount she bought each time
The least common multiple of 30 and 13 is 390 !
To answer this item, note that what needs to be done is to substitute -4 to all x's in the equation. That is,
F(x) = 2^x
will become,
F(-4) = 2^(-4) = 1/16 or 0.0625
If a light bulb consumes 600 per day, then you need to divide 2250 by 600. So it would be around 3.75 days
