36 * 7 gives you the number of nails in the whole pounds
36 * 2/3 gives you the fraction part
7 * 36 = 252
2/3 * 36 = 24
Total nails = 252 + 24 = 276 nails
The second one because for every x value there is one and only one y value. If you plotted the points and graphed it, you would know it is not a function if it doesn't pass the vertical line test. Notice the same x values show up repeatedly in the other ordered pairs with different y values. Only one y value for every x value
48/7 + 6/7 if your having any other trouble let me no
Your answer would be (A)24
because 80*4=320
so 2240-320=1920
80*24=1920
hope this helped:)