Can i get some answers to this to check my work ?

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

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

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day