Question

1)4а•5; 2)8b•3; 3)5c•2; 4)y•3•16; 5)x•5•18 6)z•6•11; 7)9•7a•3; 8)12•5b•4; 9)23•2c•5.

Answer 1

1) 4*5.  (4*5)a.  ответ 20a

2)8b*3. (8*3)b. ответ 24b

3) 5c*2.  (5*2)c. ответ 10c

4)y*(3*16).  y*48. ответ 48y

5)x*5*18.  x*(5*18).  x*90.  ответ 90x

6)z*6*11.  z*(6*11).  z*66.v ответ 66z

7)9*7a*3.  (9*7*30a.  ответ 189a

8)12*5b*4.  (12*5*4)b.  ответ 240b

9)23*2c*5.  (23*2*5)c  ответ 230c

Answer 2

It seems like you've provided a list of algebraic expressions with variables (a, b, c, x, y, z) and numbers. If you have specific questions or if you'd like me to simplify these expressions or perform any operations on them, please let me know. For now, I'll leave the expressions as they are:

1. 4a•5
2. 8b•3
3. 5c•2
4. y•3•16
5. x•5•18
6. z•6•11
7. 9•7a•3
8. 12•5b•4
9. 23•2c•5