Today kat is running a 5 1/4 kilometer race she has run 1 3/4 kilometers so far. how many kilometers dose she still have to run?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

What is r i 4.5+10r=-6.5 with work pls

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle