So, first you do 4x+54 is greater than or equal to 70 first you subtract 54 from both sides and get -16 and then you divide by 4 by both sides and get x=-4 I hope this helps :).
Answer:
False
True
False
False
Step-by-step explanation:
1. We have to get the sum as follows :

= 
= 
= 
= 
So, this is false.
2. We have to get the sum as follows :

= 
= 
= 
= 
So, this is true.
3. We have to get the difference as follows :

= 
= 
= 
= 
So, this is false.
4. We have to get the difference as follows :

= 
= 
= 
= 
So, this is also false. (Answer)
Answer:
y=15x
Step-by-step explanation:
revenue=cost of hair cut(number of haircuts)
Answer:
The total number of people in the room is 14
Step-by-step explanation:
The ratio of the number of women to the number of men to the number of children in a room is 5:2:7
So, there are
(1) The total number of women and children in the room is 12.
5 women and 7 children=12
(2) There are fewer than 4 men in the room.
There are 2 men , that´s fewer than 4
So, the total number of people is 5+2+7= 14
Answer:
= 5a - 1
Step-by-step explanation:
rope 1 = 3a + 6
rope 2 = 2a - 7
total length = 3a + 6 + 2a - 7
= 3a +2a + 6 - 7
= 5a - 1