Pls help (Show your work pls!)

1. Solve for w
21+2w=p

2. Solve for a
2a+b=c

3. Solve for a
b-2a=c

1.

Step 1: Flip the equation.

p=2w+21

p=2w+21

2.

Step 1: Add -b to both sides.

Step 2: Divide both sides by 2.

a= −1 /2b+1/2 c

3.

Step 1: Add 2a to both sides.

−2a+b+2a=c+2a

b=2a+c

b=2a+c

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

the answers c