Can someone please help me i don’t understand this

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

10x − 5y + 14 = 0 whats the answer pls

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?