Elena and lin are training for a race. Elena runs her miles a constant speed of 7.5 miles per hour.

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 are the first 4 terms in the multiplication pattern given by the formula 2×4n

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.