1) explain to someone how you would do the problem -12 + 5. explain to them how they would know if the final answer was going to be positive or negative. explain to them how they’d calculate the final answer. model for them using the number line model and/or the two colored counter method.

2) a football team gained 7 yards, lost 3 yards, gained 15 yards, lost 2 yards, lost 3 yards
and gained 6 yards. what is the net gain or loss? explain how you found your answer.
answer the question in a complete sentence.

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.

In a right triangle δabc, the length of leg ac = 5 ft and the hypotenuse ab = 13 ft. find: b the length of the angle bisector of angle ∠a.