The cost of 7 pizzas and 8 containers of soda is $51. The cost of 2 pizzas and 4 containers of soda is $18. Which system models this situation if p represents the cost of a pizza and s represents the cost of a container of soda?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Which expression gives the exact value of x?

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2