Write an equivalent expression. 2 + 4(c + 7) A) 4c + 9
B) 30 + 4c
C) 6c + 9
D) 15 + 4c

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

If a line is defined by the equation y = 5x + 2, what is the slope?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?