Challenge: if you can answer these you are genius (4 x 6) x 2 =

8 x (7 x 3) =

(10 x 5) x 8 =

(9 x 2) x 7 =

(6 x 1) x 8 =

(7 x 11) x 2 =

5 x (9 x 6) =

4 x (12 x 3) =

1. 48

2. 168

3. 400

4. 126

5. 48

6. 154

7. 270

use formula for the circle a=3.14

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).