I dont have time to do all of these right now my apolgies but Ill explain how to do it. 
The 3 angles of a triangle add up to 180.
So let me show you how to do 1.
.
.
.
1. 58 degrees
 92, 30, ?
If we add together the first two angles,
92+30= 122
Knowing the total addition of all three angles would ne 180, we can subtract 122 from it to get the third angle.
180-122= 58
So we now know the last angle is 58 degrees because
92+30+58=180
        
                    
             
        
        
        
Answer:
okay, so 1 1/6 can be converted to 7/6.
2 3/8 can be converted to 19/8
now find a common denominator, which is 24
7/6 would turn into 28/24
19/8 would turn into 57/24
now add! 28+57= 85/24
85/24
Step-by-step explanation:
please consider marking me as brainliest, my answer took alot of time and I am trying to rank up! have a great day lovely!!
 
        
             
        
        
        
Rachel and her sister Fran together can paint the living room in  hours
 hours
Given that 
Rachel can paint half of the living room in 1 hour
Fran can paint  th part of the living room in 1 hour
th part of the living room in 1 hour 
Let's assume together they paint the living room in x hours
⇒ together they can paint  th part of the living room in 1 hour
th part of the living room in 1 hour
By proportions,
⇒ +
+ =
=  {using operation proportions and addition}
 {using operation proportions and addition}
⇒ =
=
⇒x= 
         
⇒ together they can paint  th part of the living room in 1 hour
th part of the living room in 1 hour
It means, Rachel and her sister Fran together can paint the living room in  hours
 hours
Learn more about paint here: 
brainly.com/question/15277377
#SPJ9
 
        
             
        
        
        
Answer:
26:  x=34
28: x=17
30: m=30
Step-by-step explanation:
<u>26:</u> 2x+22=90
subtract 22
2x=68
divide by 2
x=34
<u>28:</u> 18+3x+21=90
add 18 and 21
3x+39=90
subtract 39
3x=51
divide by 3
x=17
<u>30:</u> 43+87+m+20=180
add 43 and 87 and 20
m+150=180
subtract 150
m=30
 
        
             
        
        
        
Answer:
B.23-14i
Step-by-step explanation:
(3x5)+(3x2i)-(4ix5)-(4ix2i)
15+6i-20i-8(-1)
15+6i-20i+8
23-14iฟ