the length of a part on a model helicopter is 8.5 cm. the scale of the model is 1:100. find the real length of the helicopter parts in meters

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

Patty made a name tag in the shape of a parallelogram. reilly made a rectangular name tag with the same base and height. explain how the areas of the name tags compare.

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?