Can someone help on 9-11 given

9)x=135º

10)x=2      23º

11)x=2       122º

Step-by-step explanation:

15x-7=19x-15

-4x=-8

4x=8

x=2

54x+14=43x+36

11x=22

x=2

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

the answer is b.)

< 1=< 2