You can set up a proportion that looks like 3/7 = x/21. X being the number that you are trying to find. Seven goes into 21 three times. So multiply 3 also by that 3 to get 9. So three sevenths of twenty-one is 9.
Answer:
1. b. the one with the v shape
2. b.
3. c.
Step-by-step explanation:
in every graph you should use the line test with is when you draw a line from top to bottom and if the line touches more then one dot or line on the graph it isnt not a function
Use the volume of a cylinder equation, V = pi*r^2*h to find the volume of the cylinder. To find the answer to the second one, find the volume of the square and subtract the volume of the cylinder from it.
-6x=19+17
-6x=36 /(-6)
x=-6
