Audrey needs to cut 1 meter of yellow ribbon and 28 centimeters of blue ribbon. in total, how much many centimeters of ribbon does she need?

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

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

If g^-1(x) is the inverse of g (x) which statement must be true