Twice a number increased by seven is equal to five. Which of the following represents the equation and solution for this statement?
A.2 n + 7 = 5; n = -4.5
B.2 n = 7 + 5; n = 6
C.2( n + 7) = 5; n = -4.5
D.2 n + 7 = 5; n = -1

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?