Select all ratios equivalent to 2:1.
18:9
21:4
25:10

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36

Asap! will mark brainliest! ( respond asap, it's urgent! : )) what is the slope for equation y =-3x + 8