Painted Pots lets customers choose and paint their own pottery. The store has teapots in multiple sizes. Rebecca chose to paint the largest teapot offered, which cost $18. She also painted 4 small teacups to go with her teapot. Rebecca spent a total of $42 on pottery.

Which equation can you use to find c, the cost of each teacup?
4(c+18)=42
4c+18=42
18c+4=42
18(c+4)=42
What was the cost of each teacup?

The equation that can be used to find the cost of each teacup is 4(c+18)=42.

To solve this equation, we can distribute 4 to both terms inside the parentheses: 4c + 72 = 42.
Then, we can subtract 72 from both sides to isolate the variable: 4c = 42 - 72.
Simplifying the right side gives: 4c = -30.
Finally, divide both sides by 4 to solve for c: c = -30/4 = -7.5.

So, the cost of each teacup is $7.50.