2. x=6 (6+5=11)
3. b=8 (2x8=16)
4. z=10 (2x10+5=25)
5. y=6 (3x6-13=5)
6. w=-6 (-4x-6=24)
7. a=-11 (-(-11)+1=12) for this one a negative and a negative make a positive which makes it 11+1
Answer:
1
Step-by-step explanation:
gradient = (8-(-4)) / (5-(-7)) = 12 / 12 = 1
Answer: We need to support her work for at least 15 days.
Step-by-step explanation:
Juana's mother receives a daily payment of 30 soles .
She has already 120 soles.
Let x = Number of days to save at least 550 soles.
Then, Total she has after x days = 120+30x
According to the question, we have

i.e. minimum value for x=15
Hence, we need to support her work for at least 15 days.
Add them all up
46+37+34+31+29+24=201
201 divide by 6 is 33.5