Answer
$35
Step-by-step explanation:
3lbs is 15 so get the price of 1 lb by dividing 15 by 3 which is 5. then multiply 5 by how many lbs you want. in this case 5 time 7 is 35
Using the cosine function:

Solve for b:
Answer:
4g-5p i think
Step-by-step explanation:
7g-3g=4g
4p-9p=-5p