Answer:
3/5
Step-by-step explanation:
sinA = opp/hyp
= 21/35
= 3/5
Answer: i dont understand
Step-by-step explanation:
The possible answers are 15,5 and 10,10
It should be 112.5 pounds because if there are 15 boxes and each box weighs 7.5 pounds, 15 x 7.5 = 112.5
Answer: 
Step-by-step explanation:
To solve for y, we want to isolate y.
[multiply both sides by y]
[subtract both sides by 3y]
[factor out y]
[divide both sides by (w-3)]

Now, we know that
.