Expression : 6w - 7 + 12w - 3z
Steps To Solving!
#1 : 6w - 7 + 12w - 3z
= 6w + -7 + 12w + -3z
#2 : Combine Like Terms
6w + -7 + 12w + -3z
= (6w + 12w) + (-3z) + (-7)
= 18w + -3z + -7
ANSWER: 18w - 3z - 7
Hope this helped!
Answer:
1375
Step-by-step explanation:
10*25+15*75 = 1375
We know that 5 lbs of apples cost $2.99
To know how much do 3 lbs of apple cost, you can use cross multiplication
If 5 lbs cost $2.99
Then 3 lbs cost $x
The proportion between the price and the number of apples is the same, you have to calculate it as:

3 lbs of apples cost $1.79
Stick change flip
5/6 x 10/3 = 50/18 2 14/18 simplify 2 7/9