The equation y=1/9 x relates proportional quantities x and y.
what is the value of x when y is 4? enter your answer in the box.

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?