Answer:

Step-by-step explanation:

-7+-3= -10 6+9=15
-10/2=-5 15/2=7.5

13+14=180°
12x-22+9x-29=180
21x-51=180
x=11
m<2=m<14
m<2=70°
Answer:
Im sorry! idk the answer but if you have a phone, there is this app called photo math, or ask you mom or dad for help.
Step-by-step explanation:
Answer:
478
Step-by-step explanation:
559.45-457.41=102.04
102.04/559.45*100
approximately 478