cos (sin^ -1 ( 3 7 )=\ \ \ O A. (2sqrt(10))/7; 7/(2sqrt(10)); 3/(2sqrt(10)) D. Undefined. Help pls fast

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan 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?

Can someone me i’m confused. will give brainliest and a whole bunch of points

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext