Can someone pls explain this to me

30, 90

Step-by-step explanation:

To find the unit rate divide:

50 ÷ 20 = 2.5

The unit rate is 1:2.5, which means for every minute, Jill can answer two and a half math problems. We can use this to find the other proportions.

12 × 2.5 = 30

36 × 2.5 = 90

This means the chart should look like this:

20 : 50

12 : 30

36 : 90

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.