A gift shop is running an in-store special. Customers can buy any 5 t-shirts for $69.90. What is the cost of 8 t-shirts?

111.84

Step-by-step explanation: First divide 69.90 by five since we know that's the price of five t shirts. 69.90 divided by 5 is 13.98.

that is the price of a single shirt so now you multiply 13.98 x 8 which equals 111.84 and that's your answer.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true