Which graph shows a set of ordered pairs that represent a function?

A car is traveling at a speed of 80 kilometers per hour. What is the car's speed in miles per hour? How many miles will the car travel in 2 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answers.

What is the missing polynomial?

?-(20-4x-5x^2)=20-7x^2

Celsius and Fahrenheit The formula to convert from Celsius to Fahrenheit is F = 1.8C + 32 . Use this formula to complete the statements below. Round your answers to the nearest tenth as needed. If the temperature is 57 ºF, that is equivalent to ºC. If the temperature is 44 ºC, that is equivalent to ºF.

(a) Sketch the graph with equation

y=|3x-2a|

where a is a positive constant.

State the coordinates of each point where the graph cuts or meets the coordinate axes.

(b) Solve, in terms of a, the inequality

|3x-2a|≤x+a

Given that |3x-2a|≤ x+a

(c) find, in terms of a, the range of possible values of g(x) , where

g(x)=5a-| 1/2 a-x|