The school that Stefan goes to is selling tickets to a choral performance. On the first day of ticket sales, the school sold 3 senior citizen tickets and 1 child ticket for a total of $38. The school took $52 on the second day by selling 3 senior citizen tickets and 2 child tickets. Which equations represent the system that could be used?

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

Which statements are true? see picture

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?