Wouldn’t the question mark be three since the pattern is multiplied by 7 and that the 3 is equaled towards the question mark?

Given the following similar triangles what is the area of triangle b ? a) 1 b)1.8 c)3.2 d)5

The system of equations graphed below has how many solutions?

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