12=b+17 My sister is 12 years old. My brother says that his age minus seventeen is equal to my sister's age. How old is my brother?

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

I’m stuck on this equation, anyone got the answer?