1. 2x-y=0 X+3y=-14

2. Write the equation of the line in slope intercept form that goes through the point (7,2) and has a slope of 4.

3. 4-5x+3=4x-2

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Please help me out guys, thanks❤️

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.