In the United States, the average public school teacher currently earns an annual salary near $55,202. Reported national average salaries for the last six decades are listed below.

Estimate the increase in the national average teachers’ salary over the span of the six decades, 1960 – 2010.

1539.7, answer choice B.

Step-by-step explanation:

To determine the difference average increase per year between 1980 and 1990, you need to find the difference between the two years and divide by 10.  , or answer choice B.

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17