Please help me answer 11,12,13,14 PLEASE HELP ME!!

11. 31/5

12. -4.3

13. 7/10

14. 10.2

Step-by-step explanation:

11. multiply the denominator 5 by the whole number 6 and add the result to the numerator

5 x 6 = 30 + 1 = 31/5

12. -2.5 + (-1.8)

when a positive and negative sign are placed together they, change to a negative since hence, -4.2

13. find the least common multiple of 5 and 10 which is 10

    divide 10 by 5 and 10 by 10

   5/ 10 = 2     10/10 = 1

   2x3 = 6     1x1 = 1

   6+1/10

  7/10

14. 8-(-2.2)

multiply the negative sign within the parenthesis with the sign outside of it

8 + 2.2

 10.2

Hopes this helps :)

step-by-step explanation:

1. the cylinder is a. 54

2.   a.108 /