3 pounds would cost $6.75
$4.50/2 = $2.25 per pound
$2.25 x 3 = $6.75
Answer:
–5t + 4x – 2
Explanation:
7t – 4(–x + .5) – 12t
combine 7t and – 12
7 – 12 = – 5
– 4(–x +.5) – 5t
Now distribute –4:
4x – 2 – 5t
Rearrange:
4x – 5t – 2
or
5t + 4x – 2
Answer:

Step-by-step explanation:
Step-by-step explanation:
10+2+2+7+5+3+8+8= 21+24= 45units